For large-scale energy storage devices,all-solid-state sodium-ion batteries(SIBs)have been revered for the abundant resources,low cost,safety performance and a wide operating temperature range.Na-ion solid-state elect...For large-scale energy storage devices,all-solid-state sodium-ion batteries(SIBs)have been revered for the abundant resources,low cost,safety performance and a wide operating temperature range.Na-ion solid-state electrolytes(Na-ion SSEs)are the critical parts and mostly determine the electrochemical performance of SIBs.Among the studied ones,inorganic Na-ion SSEs stand out for their good safety performance and high ionic conductivity.In this review,we outline the research progress of inorganic SSEs in SIBs based on the perspectives of crystal structure,performance optimization,synthesis methods,allsolid-state SIBs,interface modification and related characterization techniques.We hope to provide some ideas for the design of future high-performance Na-ion SSEs.展开更多
An inorganic-organic hybrid compound, [H_3NC_2H_4NH_2]VOPO_4 was synthesized by means of the hydrothermal method. It was crystallized in a monoclinic system, a space group P2_1/c, with the crystal cell parameters: a=0...An inorganic-organic hybrid compound, [H_3NC_2H_4NH_2]VOPO_4 was synthesized by means of the hydrothermal method. It was crystallized in a monoclinic system, a space group P2_1/c, with the crystal cell parameters: a=0.92285(11) nm, b=0.72994(9) nm, c=0.98495(11) nm, β=101.280(3)°, V=0.65067(13) nm^3, M_r=223.02 g/mol, D_c=2.277 g/cm^3, Z=4, R=0.0315, ωR=0.0865, GOF=1.085. The VO_5N octahedra chains are corner-linked by PO_4 tetrahedra; the VO_5N octahedra are all trans-linked with V—O bonds being alternately short and long. The monoprotonated ethylenediamine was intercalated between the layers with one end coordinating to V and the other end as an H-bond donor interacting with a terminal O atom of PO_4 from a neighboring sheet. The elementary analysis, infrared spectrum characters and thermal stability were also given.展开更多
A novel one-dimensional inorganic-organic hybrid gallophosphate compound, Ga（2,2＇-bipy）（HPO4）. （H2PO4）（denoted JGP-2） was synthesized hydrothermally with 2,2＇-bipyridine as a ligand and characterized by X-ra...A novel one-dimensional inorganic-organic hybrid gallophosphate compound, Ga（2,2＇-bipy）（HPO4）. （H2PO4）（denoted JGP-2） was synthesized hydrothermally with 2,2＇-bipyridine as a ligand and characterized by X-ray powder diffraction （XRD）, elemental analysis, inductively coupled plasma（ICP）, TGA analysis, solid-state ^31p NMR, and luminescence spectra and structurally determined by single-crystal X-ray diffraction analysis. JGP-2 crystallized in the triclinic system, space group P^-1（No.2）, with a=0.7818（1） nm, b=0.8611 （2） nm, c=1.0908（2） nm, V=0.6727（2） nm^3 and Z=2 with R1=0.0223. The structure of JGP-2 was built up by alternate arrangement of GaO4N2 octahedra, and HPO4（or H2PO4） tetrahedra to form an infinite one-dimensional corner-sharing-corner（CSC） chain. Through P sites, the CSC chains link with an unusual edge-sharing dimmer, Ga2F4（H2O）2, giving rise to a 4,10-membered ring net layered structure of JGP-7. On excitation at 254 nm, JGP-2 can emit strong blue light at ,λmax=388 rim. JGP-7 presents a strong fluorescence emission band centered at 394 nm（λex=340 nm）, the emission energy of JGP-7 is red-shifted comoared with that of JGP-2.展开更多
To make inorganic structure data more useful for further studies a five-point list of simple procedures to be followed by authors of crystal structure papers is proposed. 1. A crystal structure should be described wit...To make inorganic structure data more useful for further studies a five-point list of simple procedures to be followed by authors of crystal structure papers is proposed. 1. A crystal structure should be described with the space group corresponding to its true symmetry. 2. A new structure proposal should be tested, if it is realistic in principle. 3. A structure should be described with a space group in a setting given in the International Tables. 4. For a comparison with other structures the structure data should be standardized with the program STRUCTURE TIDY. 5. 揘ew?structure data should be checked in the databases, Chemical Abstracts or on-line internet resources, if they are really new. The list is supplemented with many explanations, commentaries, examples and references.展开更多
Wood-based panels containing urea-formaldehyde resin result in the long-term release of formaldehyde and threaten human health.In this study,inorganic aluminosilicate coatings prepared by combining metakaolin,silica f...Wood-based panels containing urea-formaldehyde resin result in the long-term release of formaldehyde and threaten human health.In this study,inorganic aluminosilicate coatings prepared by combining metakaolin,silica fume,NaOH,and H_(2)O were applied to the surfaces of wood-based panels to obstruct formaldehyde release.The Si/Al,Na/Al,and H_(2)O/Na_(2)O molar ratios of the coatings were regulated to investigate their effects on the structure and formaldehyde-resistant barrier properties of coatings.Results showed that the cracks in the coatings gradually disappeared and the formaldehyde resistance rates of the barrier increased as the Si/Al molar ratio was increased from 1.6 to 2.2.This value also increased as the Na/Al molar ratio was increased from 0.9 to 1.2 because of the improvement of the degree of polymerization.As the H_(2)O/Na_(2)O molar ratio was increased from 12 to 15,the thickness of the dry film decreased gradually and led to the reduction in the formaldehyde resistance rate.When the Si/Al,Na/Al,and H_(2)O/Na_(2)O molar ratios were 2.2,1.2,and 12,respectively,the inorganic aluminosilicate coating showed good performance as a formaldehyde-resistant barrier and its formaldehyde resistance rate could reach up to 83.2%.展开更多
The increasing anthropogenic emissions of greenhouse gases(GHG)is encouraging extensive research in CO_(2)utilisation.Dry reforming of methane(DRM)depicts a viable strategy to convert both CO_(2)and CH4into syngas,a w...The increasing anthropogenic emissions of greenhouse gases(GHG)is encouraging extensive research in CO_(2)utilisation.Dry reforming of methane(DRM)depicts a viable strategy to convert both CO_(2)and CH4into syngas,a worthwhile chemical intermediate.Among the different active phases for DRM,the use of nickel as catalyst is economically favourable,but typically deactivates due to sintering and carbon deposition.The stabilisation of Ni at different loadings in cerium zirconate inorganic complex structures is investigated in this work as strategy to develop robust Ni-based DRM catalysts.XRD and TPR-H2analyses confirmed the existence of different phases according to the Ni loading in these materials.Besides,superficial Ni is observed as well as the existence of a CeNiO_(3)perovskite structure.The catalytic activity was tested,proving that 10 wt.%Ni loading is the optimum which maximises conversion.This catalyst was also tested in long-term stability experiments at 600and 800℃in order to study the potential deactivation issues at two different temperatures.At 600℃,carbon formation is the main cause of catalytic deactivation,whereas a robust stability is shown at 800℃,observing no sintering of the active phase evidencing the success of this strategy rendering a new family of economically appealing CO_(2)and biogas mixtures upgrading catalysts.展开更多
Ionothermal synthesis was used to prepare a novel amino acid containing hybrid zincophosphate monomer,[Zn（HPO4）（H2PO4）][C6H10N3O2]（denoted as ZnPO-CJ58）.The inorganic framework of [Zn（HPO4）（H2PO4）]·[C6H...Ionothermal synthesis was used to prepare a novel amino acid containing hybrid zincophosphate monomer,[Zn（HPO4）（H2PO4）][C6H10N3O2]（denoted as ZnPO-CJ58）.The inorganic framework of [Zn（HPO4）（H2PO4）]·[C6H10N3O2] consists of 4-membered rings formed by ZnO3OHis and PO2（OH）2 tetrahedra.The HPO4 and amino acid moieties hang on the Zn center.Such a framework is stabilized by extensive multipoint hydrogen bonds involving the phosphate units and histidine molecules to form a pseudo-3D supramolecular structure.It is noteworthy that ZnPO-CJ58 is the first zinc phosphate cluster with amino acid acting as the ligand.It exhibits photoluminescence excited at a wavelength of 220 nm.Interestingly,ZnPO-CJ58 can transform into a layered structure （C6H10N3O2）Zn2·（HPO4）（PO4）·H2O（ZnPO-CJ36） through further reacting with water or zinc acetate dihydrate in water at 85℃ for 1 h.This work will be helpful for the synthesis of crystalline inorganic-organic hybrid materials with biofunctional molecules.展开更多
A distinctive feature of phosphates is their special and significant ability to form inorganic polymeric compounds---condensed phosphates, which are destined to play a considerable role in our ＂high-tech＂ society in...A distinctive feature of phosphates is their special and significant ability to form inorganic polymeric compounds---condensed phosphates, which are destined to play a considerable role in our ＂high-tech＂ society in the future. Numerous olygophosphates, polyphosphates, double condensed phosphates and cyclophosphates with diverse formula, such as double tetra-, octa- and dodecaphosphates were obtained and described by us last years. The offered data are the outcomes of our scientific researches： of synthesis, analysis, and estimation of results in correlation with new achievements in inorganic polymer＇s chemistry. Many double condensed compounds, containing monovalent metals are obtained by us during systematic investigation of polycomponent systems, containing mono- and trivalent metals at temperature range 100-600 ~C. Synthesised condensed phosphates, in fact--inorganic polymers were examined in detail by chemical and thermogravimetric analysis, most compounds were examined by paper chromatography and the structures are determined by X-ray structural techniques/diffraction analysis. During our fundamental researches numerous new （about 70） unknown until now condensed phosphates have been obtained. Dependency of composition VS temperature and molar ratio, reliance of structure from duration of synthesis and radius of the ions are revealed.展开更多
Flexible aqueous zinc-air batteries with high energy density and safety have garnered significant attention.Gel polymer electrolytes have emerged as the preferred option over conventional liquid electrolytes due to th...Flexible aqueous zinc-air batteries with high energy density and safety have garnered significant attention.Gel polymer electrolytes have emerged as the preferred option over conventional liquid electrolytes due to their ability to prevent electrolyte leakage.In this study,a composite PANa-PVP-TiO_(2)(NH_(2))hydrogel with high alkaline resistance and ionic conductivity is designed,where the inorganic TiO_(2)(NH_(2))nanoparticles are evenly distributed and integrated into the organic dual network of polyacrylate sodium and polyvinyl pyrrolidone.The organic-inorganic hybrid structure enhances the absorption and retention capabilities for electrolyte solution,leading to impressive ionic conductivity of the gel polymer electrolyte throughout the operation of flexible aqueous zinc-air batteries.Additionally,the incorporation of TiO_(2)(NH_(2))nanoparticles and the dual network construction effectively strengthen the mechanical strength and flexibility of the gel polymer electrolyte,suppressing by-products and zinc dendrite formation.The enhancements lead to the extended cycling longevity of zinc symmetric batteries and excellent power density,as well as the prolonged cycle life of flexible aqueous zinc-air batteries.展开更多
Self-assembled inorganic halide perovskite superlattices(HPSLs)have attracted extensive attention for their well-ordered structure and unique collective photonic properties,which differ from those of individual nanocr...Self-assembled inorganic halide perovskite superlattices(HPSLs)have attracted extensive attention for their well-ordered structure and unique collective photonic properties,which differ from those of individual nanocrystals(NCs).However,the manipulation of ordered HPSLs with all-halogen and alloyed halogen components,as well as the regulation of their coherent spontaneous emission across the visible spectrum,remains underexplored.In this study,we employ a combination of anion-exchange reactions and a slow solvent evaporation strategy to self-assemble monodisperse,uniform all inorganic perovskite NCs into a series of well-defined,long-range ordered,and densely packed CsPbX3(X=Cl,Br,I,and mixed halide systems such as Cl/Br,Br/I,and Cl/Br/I)superlattices,achieving coherent photoluminescence(PL)emission across the entire visible spectrum(400–700 nm).Notably,the collective coherent emission of all HPSLs exhibits dynamic redshifts and accelerated collective radiative decay due to strong electronic coupling between NCs at cryogenic temperatures(7 K).This study not only systematically investigates all-halide compositional HPSLs but also paves the way for quantum light source applications across the visible spectrum.展开更多
Two new inorganic-organic hybrid polymers, Mn(QS)(H<sub>2</sub>O) (1) and Co(QS)(H<sub>2</sub>O)<sub>2</sub> (2) (H<sub>2</sub>QS=8-hydroxylquinoline-5-sulfonic acid), b...Two new inorganic-organic hybrid polymers, Mn(QS)(H<sub>2</sub>O) (1) and Co(QS)(H<sub>2</sub>O)<sub>2</sub> (2) (H<sub>2</sub>QS=8-hydroxylquinoline-5-sulfonic acid), based on 8-hydroxylquinoline-5-sulfonate ligand, have been synthesized under solvothermal conditions and their structures were solved by single-crystal X-ray diffraction analysis. Compound 1 is a three-dimensional open framework with rutile topology structure, and compound 2 is a three-dimensional supramolecular structure. These compounds were characterized by powder XRD, infrared spectroscopy, thermogravimetric analysis, fluorescence properties and magnetism properties.展开更多
WS2 nanotubes have been filled and intercalated by molten phase caesium iodide.The presence of caesium iodide inside the WS_(2) nanotubes has been determined using high-resolution transmission electron microscopy(HRTE...WS2 nanotubes have been filled and intercalated by molten phase caesium iodide.The presence of caesium iodide inside the WS_(2) nanotubes has been determined using high-resolution transmission electron microscopy(HRTEM)coupled with electron energy-loss spectroscopy(EELS)and energy-dispersive X-ray spectroscopy(EDS).Noticeably,a Moirépattern was observed due to the interference between encapsulated CsI and WS_(2) layers.The intercalation of CsI into the host concentric WS2 lattices resulted in an increase in the interplanar spacing.展开更多
Since the first design of tactile sensors was proposed by Harmon in 1982,tactile sensors have evolved through four key phases:industrial applications(1980s,basic pressure detection),miniaturization via MEMS(1990s),fle...Since the first design of tactile sensors was proposed by Harmon in 1982,tactile sensors have evolved through four key phases:industrial applications(1980s,basic pressure detection),miniaturization via MEMS(1990s),flexible electronics(2010s,stretchable materials),and intelligent systems(2020s-present,AI-driven multimodal sensing).With the innovation of material,processing techniques,and multimodal fusion of stimuli,the application of tactile sensors has been continuously expanding to a diversity of areas,including but not limited to medical care,aerospace,sports and intelligent robots.Currently,researchers are dedicated to develop tactile sensors with emerging mechanisms and structures,pursuing high-sensitivity,high-resolution,and multimodal characteristics and further constructing tactile systems which imitate and approach the performance of human organs.However,challenges in the combination between the theoretical research and the practical applications are still significant.There is a lack of comprehensive understanding in the state of the art of such knowledge transferring from academic work to technical products.Scaled-up production of laboratory materials faces fatal challenges like high costs,small scale,and inconsistent quality.Ambient factors,such as temperature,humidity,and electromagnetic interference,also impair signal reliability.Moreover,tactile sensors must operate across a wide pressure range(0.1 k Pa to several or even dozens of MPa)to meet diverse application needs.Meanwhile,the existing algorithms,data models and sensing systems commonly reveal insufficient precision as well as undesired robustness in data processing,and there is a realistic gap between the designed and the demanded system response speed.In this review,oriented by the design requirements of intelligent tactile sensing systems,we summarize the common sensing mechanisms,inspired structures,key performance,and optimizing strategies,followed by a brief overview of the recent advances in the perspectives of system integration and algorithm implementation,and the possible roadmap of future development of tactile sensors,providing a forward-looking as well as critical discussions in the future industrial applications of flexible tactile sensors.展开更多
Precise control over the morphology,nanostructure,composition,and particle size of molecularly organic-inorganic hybrid mesoporous organosilica nanoparticles （MONs） still remains a major challenge,which severely res...Precise control over the morphology,nanostructure,composition,and particle size of molecularly organic-inorganic hybrid mesoporous organosilica nanoparticles （MONs） still remains a major challenge,which severely restricts their broad applications.In this work an efficient bridged organic group-determined growth strategy has been proposed for the facile synthesis of highly dispersed and uniform MONs with multifarious Janus morphologies,nanostructures,organic-inorganic hybrid compositions,and particle sizes,which can be easily controlled simply by varying the bridged organic groups and the concentration of bis-silylated organosilica precursors used in the synthesis.In addition,the formation mechanism of Janus MONs determined by the bridged organic group has been discussed.Based on the specific structures,compositions,and asymmetric morphologies,all the synthesized Janus MONs with hollow structures （JHMONs） demonstrate excellent performances in nanomedicine as desirable drug carriers with high drug-loading efficiencies/capacities,pH-responsive drug releasing,and enhanced therapeutic efficiencies,as attractive contrastenhanced contrast agents for ultrasound imaging,and as excellent bilirubin adsorbents with noticeably high adsorption capacities and high blood compatibilities.The developed versatile synthetic strategy and the obtained JHMONs are extremely important in the development and applications of MONs,particularly in the areas of nanoscience and nanotechnology.展开更多
1 Results In last years increasing interest has been devoted to the development and research of transport properties of hybrid organic/inorganic membranes. Traditionally, these membranes are used as electrolyte in fue...1 Results In last years increasing interest has been devoted to the development and research of transport properties of hybrid organic/inorganic membranes. Traditionally, these membranes are used as electrolyte in fuel cells. However a number of their properties allow considering them as perspective materials for water treatment and substance purification. In this work transport properties of some ion exchange membranes modified by inorganic nanoparticles (hydrated oxides or solid acids) are discussed. ...展开更多
Prussian blue/Prussian blue analogues(PB/PBAs)are widely used in electrochemistry and materials science fields,such as electrochemical energy storage,catalysis,water purification,and electromagnetic wave absorption,ow...Prussian blue/Prussian blue analogues(PB/PBAs)are widely used in electrochemistry and materials science fields,such as electrochemical energy storage,catalysis,water purification,and electromagnetic wave absorption,owing to their 3D open-framework structure,tunable composition,and large specific surface area.However,the co-precipitation method,which is most suitable for large-scale production of PB/PBAs,often leads to the formation of numerous crystal defects and severe lattice distortion,which significantly affects the structural stability of PB/PBAs.To obtain high-crystallinity PB/PBAs with targeted properties,precise synthesis considering various detailed conditions is especially needed.Herein,this review comprehensively summarizes the fundamental structure composition,key factors in synthesis,and applications in the electrochemistry of PB/PBAs.Unlike previous reports,this review elucidates the relationship between the physicochemical properties of PB/PBAs and their structural composition,with a particular focus on revealing the mechanisms and significance of specific preparation methods during the synthesis process,including reactant concentration,chelating agent,aging,atmosphere,temperature,and drying conditions,for achieving the precise fabrication of PB/PBAs nanomaterials.As PB/PBAs gradually become materials for multidimensional applications,we urge greater attention to the unique properties of PB/PBAs that are sustained by high crystallinity and stable crystal structures.This will effectively ensure the maximization of their advantages in practical applications.展开更多
The development of low-temperature solid oxide fuel cells(LT-SOFCs)is of significant importance for realizing the widespread application of SOFCs.This has stimulated a substantial materials research effort in developi...The development of low-temperature solid oxide fuel cells(LT-SOFCs)is of significant importance for realizing the widespread application of SOFCs.This has stimulated a substantial materials research effort in developing high oxide-ion conductivity in the electrolyte layer of SOFCs.In this context,for the first time,a dielectric material,CaCu_(3)Ti_(4)O_(12)(CCTO)is designed for LT-SOFCs electrolyte application in this study.Both individual CCTO and its heterostructure materials with a p-type Ni_(0.8)Co_(0.15)Al_(0.05)LiO_(2−δ)(NCAL)semiconductor are evaluated as alternative electrolytes in LT-SOFC at 450–550℃.The single cell with the individual CCTO electrolyte exhibits a power output of approximately 263 mW cm^(-2) and an open-circuit voltage(OCV)of 0.95 V at 550℃,while the cell with the CCTO–NCAL heterostructure electrolyte capably delivers an improved power output of approximately 605 mW cm^(-2) along with a higher OCV over 1.0 V,which indicates the introduction of high hole-conducting NCAL into the CCTO could enhance the cell performance rather than inducing any potential short-circuiting risk.It is found that these promising outcomes are due to the interplay of the dielectric material,its structure,and overall properties that led to improve electrochemical mechanism in CCTO–NCAL.Furthermore,density functional theory calculations provide the detailed information about the electronic and structural properties of the CCTO and NCAL and their heterostructure CCTO–NCAL.Our study thus provides a new approach for developing new advanced electrolytes for LT-SOFCs.展开更多
With vigorous developments in nanotechnology,the elaborate regulation of microstructure shows attractive potential in the design of electromagnetic wave absorbers.Herein,a hierarchical porous structure and composite h...With vigorous developments in nanotechnology,the elaborate regulation of microstructure shows attractive potential in the design of electromagnetic wave absorbers.Herein,a hierarchical porous structure and composite heterogeneous interface are constructed successfully to optimize the electromagnetic loss capacity.The macro–micro-synergistic graphene aerogel formed by the ice template‑assisted 3D printing strategy is cut by silicon carbide nanowires(SiC_(nws))grown in situ,while boron nitride(BN)interfacial structure is introduced on graphene nanoplates.The unique composite structure forces multiple scattering of incident EMWs,ensuring the combined effects of interfacial polarization,conduction networks,and magnetic-dielectric synergy.Therefore,the as-prepared composites present a minimum reflection loss value of−37.8 dB and a wide effective absorption bandwidth(EAB)of 9.2 GHz(from 8.8 to 18.0 GHz)at 2.5 mm.Besides,relying on the intrinsic high-temperature resistance of SiC_(nws) and BN,the EAB also remains above 5.0 GHz after annealing in air environment at 600℃ for 10 h.展开更多
Solid-state electrolytes(SSEs),as the core component within the next generation of key energy storage technologies-solid-state lithium batteries(SSLBs)-are significantly leading the development of future energy storag...Solid-state electrolytes(SSEs),as the core component within the next generation of key energy storage technologies-solid-state lithium batteries(SSLBs)-are significantly leading the development of future energy storage systems.Among the numerous types of SSEs,inorganic oxide garnet-structured superionic conductors Li7La3Zr2O12(LLZO)crystallized with the cubic Iaˉ3d space group have received considerable attention owing to their highly advantageous intrinsic properties encompassing reasonable lithium-ion conductivity,wide electrochemical voltage window,high shear modulus,and excellent chemical stability with electrodes.However,no SSEs possess all the properties necessary for SSLBs,thus both the ionic conductivity at room temperature and stability in ambient air regarding cubic garnet-based electrolytes are still subject to further improvement.Hence,this review comprehensively covers the nine key structural factors affecting the ion conductivity of garnet-based electrolytes comprising Li concentration,Li vacancy concentration,Li carrier concentration and mobility,Li occupancy at available sites,lattice constant,triangle bottleneck size,oxygen vacancy defects,and Li-O bonding interactions.Furthermore,the general illustration of structures and fundamental features being crucial to chemical stability is examined,including Li concentration,Li-site occupation behavior,and Li-O bonding interactions.Insights into the composition-structure-property relations among cubic garnet-based oxide ionic conductors from the perspective of their crystal structures,revealing the potential compatibility conflicts between ionic transportation and chemical stability resulting from Li-O bonding interactions.We believe that this review will lay the foundation for future reasonable structural design of oxide-based or even other types of superionic conductors,thus assisting in promoting the rapid development of alternative green and sustainable technologies.展开更多
基金supported by the National Natural Science Foundation of China(Nos.22175070,22293041)supported by the National Key Research and Development Program(Nos.2021YFB2500200,2021YFB2400300)+1 种基金the National Natural Science Foundation of China(No.52177214)China Fujian Energy Devices Science and Technology Innovation Laboratory Open Fund(No.21C-OP202211)。
文摘For large-scale energy storage devices,all-solid-state sodium-ion batteries(SIBs)have been revered for the abundant resources,low cost,safety performance and a wide operating temperature range.Na-ion solid-state electrolytes(Na-ion SSEs)are the critical parts and mostly determine the electrochemical performance of SIBs.Among the studied ones,inorganic Na-ion SSEs stand out for their good safety performance and high ionic conductivity.In this review,we outline the research progress of inorganic SSEs in SIBs based on the perspectives of crystal structure,performance optimization,synthesis methods,allsolid-state SIBs,interface modification and related characterization techniques.We hope to provide some ideas for the design of future high-performance Na-ion SSEs.
基金Supported by the National Natural Science Foundation of China.
文摘An inorganic-organic hybrid compound, [H_3NC_2H_4NH_2]VOPO_4 was synthesized by means of the hydrothermal method. It was crystallized in a monoclinic system, a space group P2_1/c, with the crystal cell parameters: a=0.92285(11) nm, b=0.72994(9) nm, c=0.98495(11) nm, β=101.280(3)°, V=0.65067(13) nm^3, M_r=223.02 g/mol, D_c=2.277 g/cm^3, Z=4, R=0.0315, ωR=0.0865, GOF=1.085. The VO_5N octahedra chains are corner-linked by PO_4 tetrahedra; the VO_5N octahedra are all trans-linked with V—O bonds being alternately short and long. The monoprotonated ethylenediamine was intercalated between the layers with one end coordinating to V and the other end as an H-bond donor interacting with a terminal O atom of PO_4 from a neighboring sheet. The elementary analysis, infrared spectrum characters and thermal stability were also given.
基金Supported by the National Natural Science Foundation of China(Nos.20671025 and 20771030)China Postdoctoral Science Foundation Funded Project(No.65204)Heilongjiang Province Natural Science Foundation, China(No.B200603).
文摘A novel one-dimensional inorganic-organic hybrid gallophosphate compound, Ga（2,2＇-bipy）（HPO4）. （H2PO4）（denoted JGP-2） was synthesized hydrothermally with 2,2＇-bipyridine as a ligand and characterized by X-ray powder diffraction （XRD）, elemental analysis, inductively coupled plasma（ICP）, TGA analysis, solid-state ^31p NMR, and luminescence spectra and structurally determined by single-crystal X-ray diffraction analysis. JGP-2 crystallized in the triclinic system, space group P^-1（No.2）, with a=0.7818（1） nm, b=0.8611 （2） nm, c=1.0908（2） nm, V=0.6727（2） nm^3 and Z=2 with R1=0.0223. The structure of JGP-2 was built up by alternate arrangement of GaO4N2 octahedra, and HPO4（or H2PO4） tetrahedra to form an infinite one-dimensional corner-sharing-corner（CSC） chain. Through P sites, the CSC chains link with an unusual edge-sharing dimmer, Ga2F4（H2O）2, giving rise to a 4,10-membered ring net layered structure of JGP-7. On excitation at 254 nm, JGP-2 can emit strong blue light at ,λmax=388 rim. JGP-7 presents a strong fluorescence emission band centered at 394 nm（λex=340 nm）, the emission energy of JGP-7 is red-shifted comoared with that of JGP-2.
文摘To make inorganic structure data more useful for further studies a five-point list of simple procedures to be followed by authors of crystal structure papers is proposed. 1. A crystal structure should be described with the space group corresponding to its true symmetry. 2. A new structure proposal should be tested, if it is realistic in principle. 3. A structure should be described with a space group in a setting given in the International Tables. 4. For a comparison with other structures the structure data should be standardized with the program STRUCTURE TIDY. 5. 揘ew?structure data should be checked in the databases, Chemical Abstracts or on-line internet resources, if they are really new. The list is supplemented with many explanations, commentaries, examples and references.
基金financially supported by the National Key Research and Development Program of China(Nos.2016 YFC0700607,2017YFB0304305,and 2016YFC0700901)the Fundamental Research Funds for the Central Universities of China(No.FRF-TP-20-006A3).
文摘Wood-based panels containing urea-formaldehyde resin result in the long-term release of formaldehyde and threaten human health.In this study,inorganic aluminosilicate coatings prepared by combining metakaolin,silica fume,NaOH,and H_(2)O were applied to the surfaces of wood-based panels to obstruct formaldehyde release.The Si/Al,Na/Al,and H_(2)O/Na_(2)O molar ratios of the coatings were regulated to investigate their effects on the structure and formaldehyde-resistant barrier properties of coatings.Results showed that the cracks in the coatings gradually disappeared and the formaldehyde resistance rates of the barrier increased as the Si/Al molar ratio was increased from 1.6 to 2.2.This value also increased as the Na/Al molar ratio was increased from 0.9 to 1.2 because of the improvement of the degree of polymerization.As the H_(2)O/Na_(2)O molar ratio was increased from 12 to 15,the thickness of the dry film decreased gradually and led to the reduction in the formaldehyde resistance rate.When the Si/Al,Na/Al,and H_(2)O/Na_(2)O molar ratios were 2.2,1.2,and 12,respectively,the inorganic aluminosilicate coating showed good performance as a formaldehyde-resistant barrier and its formaldehyde resistance rate could reach up to 83.2%.
基金supported by grant PID2019-108502RJ-I00 and grant IJC2019-040560-I both funded by MCIN/AEI/10.13039/501100011033RYC2018-024387-I funded by MCIN/AEI/10.13039/501100011033 and by ESF Investing in your future。
文摘The increasing anthropogenic emissions of greenhouse gases(GHG)is encouraging extensive research in CO_(2)utilisation.Dry reforming of methane(DRM)depicts a viable strategy to convert both CO_(2)and CH4into syngas,a worthwhile chemical intermediate.Among the different active phases for DRM,the use of nickel as catalyst is economically favourable,but typically deactivates due to sintering and carbon deposition.The stabilisation of Ni at different loadings in cerium zirconate inorganic complex structures is investigated in this work as strategy to develop robust Ni-based DRM catalysts.XRD and TPR-H2analyses confirmed the existence of different phases according to the Ni loading in these materials.Besides,superficial Ni is observed as well as the existence of a CeNiO_(3)perovskite structure.The catalytic activity was tested,proving that 10 wt.%Ni loading is the optimum which maximises conversion.This catalyst was also tested in long-term stability experiments at 600and 800℃in order to study the potential deactivation issues at two different temperatures.At 600℃,carbon formation is the main cause of catalytic deactivation,whereas a robust stability is shown at 800℃,observing no sintering of the active phase evidencing the success of this strategy rendering a new family of economically appealing CO_(2)and biogas mixtures upgrading catalysts.
基金Supported by the National Natural Science Foundation of China(No.20080504)
文摘Ionothermal synthesis was used to prepare a novel amino acid containing hybrid zincophosphate monomer,[Zn（HPO4）（H2PO4）][C6H10N3O2]（denoted as ZnPO-CJ58）.The inorganic framework of [Zn（HPO4）（H2PO4）]·[C6H10N3O2] consists of 4-membered rings formed by ZnO3OHis and PO2（OH）2 tetrahedra.The HPO4 and amino acid moieties hang on the Zn center.Such a framework is stabilized by extensive multipoint hydrogen bonds involving the phosphate units and histidine molecules to form a pseudo-3D supramolecular structure.It is noteworthy that ZnPO-CJ58 is the first zinc phosphate cluster with amino acid acting as the ligand.It exhibits photoluminescence excited at a wavelength of 220 nm.Interestingly,ZnPO-CJ58 can transform into a layered structure （C6H10N3O2）Zn2·（HPO4）（PO4）·H2O（ZnPO-CJ36） through further reacting with water or zinc acetate dihydrate in water at 85℃ for 1 h.This work will be helpful for the synthesis of crystalline inorganic-organic hybrid materials with biofunctional molecules.
文摘A distinctive feature of phosphates is their special and significant ability to form inorganic polymeric compounds---condensed phosphates, which are destined to play a considerable role in our ＂high-tech＂ society in the future. Numerous olygophosphates, polyphosphates, double condensed phosphates and cyclophosphates with diverse formula, such as double tetra-, octa- and dodecaphosphates were obtained and described by us last years. The offered data are the outcomes of our scientific researches： of synthesis, analysis, and estimation of results in correlation with new achievements in inorganic polymer＇s chemistry. Many double condensed compounds, containing monovalent metals are obtained by us during systematic investigation of polycomponent systems, containing mono- and trivalent metals at temperature range 100-600 ~C. Synthesised condensed phosphates, in fact--inorganic polymers were examined in detail by chemical and thermogravimetric analysis, most compounds were examined by paper chromatography and the structures are determined by X-ray structural techniques/diffraction analysis. During our fundamental researches numerous new （about 70） unknown until now condensed phosphates have been obtained. Dependency of composition VS temperature and molar ratio, reliance of structure from duration of synthesis and radius of the ions are revealed.
基金supported by the National Natural Science Foundation of China(Grant Nos.51872147,22136003)the Project of Hubei Provincial Department of Education(Grant No.D20221202)+1 种基金the 111 Project(Grant No.D20015)the Hubei Provincial Natural Science Foundation of China(Grant Nos.2022CFA065,2022CFB820).
文摘Flexible aqueous zinc-air batteries with high energy density and safety have garnered significant attention.Gel polymer electrolytes have emerged as the preferred option over conventional liquid electrolytes due to their ability to prevent electrolyte leakage.In this study,a composite PANa-PVP-TiO_(2)(NH_(2))hydrogel with high alkaline resistance and ionic conductivity is designed,where the inorganic TiO_(2)(NH_(2))nanoparticles are evenly distributed and integrated into the organic dual network of polyacrylate sodium and polyvinyl pyrrolidone.The organic-inorganic hybrid structure enhances the absorption and retention capabilities for electrolyte solution,leading to impressive ionic conductivity of the gel polymer electrolyte throughout the operation of flexible aqueous zinc-air batteries.Additionally,the incorporation of TiO_(2)(NH_(2))nanoparticles and the dual network construction effectively strengthen the mechanical strength and flexibility of the gel polymer electrolyte,suppressing by-products and zinc dendrite formation.The enhancements lead to the extended cycling longevity of zinc symmetric batteries and excellent power density,as well as the prolonged cycle life of flexible aqueous zinc-air batteries.
基金financially supported by the National Natural Science Foundation of China(52072281)the Major Program of the National Natural Science Foundation of China(22293021)+1 种基金the Wuhan University of Technology Doctoral Research Initiation Fee(40120543)the Hubei Province's State-allocated Dual-class Research Platform Fee(40120623).
文摘Self-assembled inorganic halide perovskite superlattices(HPSLs)have attracted extensive attention for their well-ordered structure and unique collective photonic properties,which differ from those of individual nanocrystals(NCs).However,the manipulation of ordered HPSLs with all-halogen and alloyed halogen components,as well as the regulation of their coherent spontaneous emission across the visible spectrum,remains underexplored.In this study,we employ a combination of anion-exchange reactions and a slow solvent evaporation strategy to self-assemble monodisperse,uniform all inorganic perovskite NCs into a series of well-defined,long-range ordered,and densely packed CsPbX3(X=Cl,Br,I,and mixed halide systems such as Cl/Br,Br/I,and Cl/Br/I)superlattices,achieving coherent photoluminescence(PL)emission across the entire visible spectrum(400–700 nm).Notably,the collective coherent emission of all HPSLs exhibits dynamic redshifts and accelerated collective radiative decay due to strong electronic coupling between NCs at cryogenic temperatures(7 K).This study not only systematically investigates all-halide compositional HPSLs but also paves the way for quantum light source applications across the visible spectrum.
基金Supported by the State Basic Research Project (2006CB806100)Outstanding Young Scientist Foundation of the National Natural Science Foundation of China (20625102)+3 种基金the National Natural Science Foundation of China (Grant Nos. 20831D02, 20571030, 20531030, and 20371020)"111" Program of Ministry of Education of China and Bureau of Science & Technology of Jilin ProvinceJilin Province Hi-Tech Development Project (20090131)International Cooperation Project of Ministry of Science and Technology (2007DFA40830)
文摘Two new inorganic-organic hybrid polymers, Mn(QS)(H<sub>2</sub>O) (1) and Co(QS)(H<sub>2</sub>O)<sub>2</sub> (2) (H<sub>2</sub>QS=8-hydroxylquinoline-5-sulfonic acid), based on 8-hydroxylquinoline-5-sulfonate ligand, have been synthesized under solvothermal conditions and their structures were solved by single-crystal X-ray diffraction analysis. Compound 1 is a three-dimensional open framework with rutile topology structure, and compound 2 is a three-dimensional supramolecular structure. These compounds were characterized by powder XRD, infrared spectroscopy, thermogravimetric analysis, fluorescence properties and magnetism properties.
基金This work was supported by the Israel Science Foundation,European Research Council(ERC)grant(No.INTIF 226639)H.Perlman Foundation and the Cherna Moskowitz Center for Nano and Bio-Nano imaging.We thank Dr.Rita Rosentsveig for the supply of WS_(2)inorganic nanotubes.G.T.acknowledges support through FP7 European Community Marie Curie European Reintegration Grant(ERG)(No.PERG04-GA-2008-239303)+1 种基金B.B.a contract from Ministry of Science and Innovation(Ministerio de Ciencia e Innovación,MICINN)Spain.S.Y.H was supported by a Samsung Corporation fellowship(2005-2009)B.G.D.is a Royal Society-Wolfson Research Merit Award recipient and is also supported by an Engineering and Physical Sciences Research Council of the UK(EPSRC)Platform Grant(No.EPSRC EP/E000614/1).
文摘WS2 nanotubes have been filled and intercalated by molten phase caesium iodide.The presence of caesium iodide inside the WS_(2) nanotubes has been determined using high-resolution transmission electron microscopy(HRTEM)coupled with electron energy-loss spectroscopy(EELS)and energy-dispersive X-ray spectroscopy(EDS).Noticeably,a Moirépattern was observed due to the interference between encapsulated CsI and WS_(2) layers.The intercalation of CsI into the host concentric WS2 lattices resulted in an increase in the interplanar spacing.
基金the financial support of the National Natural Science Foundation of China(NO.52173028)。
文摘Since the first design of tactile sensors was proposed by Harmon in 1982,tactile sensors have evolved through four key phases:industrial applications(1980s,basic pressure detection),miniaturization via MEMS(1990s),flexible electronics(2010s,stretchable materials),and intelligent systems(2020s-present,AI-driven multimodal sensing).With the innovation of material,processing techniques,and multimodal fusion of stimuli,the application of tactile sensors has been continuously expanding to a diversity of areas,including but not limited to medical care,aerospace,sports and intelligent robots.Currently,researchers are dedicated to develop tactile sensors with emerging mechanisms and structures,pursuing high-sensitivity,high-resolution,and multimodal characteristics and further constructing tactile systems which imitate and approach the performance of human organs.However,challenges in the combination between the theoretical research and the practical applications are still significant.There is a lack of comprehensive understanding in the state of the art of such knowledge transferring from academic work to technical products.Scaled-up production of laboratory materials faces fatal challenges like high costs,small scale,and inconsistent quality.Ambient factors,such as temperature,humidity,and electromagnetic interference,also impair signal reliability.Moreover,tactile sensors must operate across a wide pressure range(0.1 k Pa to several or even dozens of MPa)to meet diverse application needs.Meanwhile,the existing algorithms,data models and sensing systems commonly reveal insufficient precision as well as undesired robustness in data processing,and there is a realistic gap between the designed and the demanded system response speed.In this review,oriented by the design requirements of intelligent tactile sensing systems,we summarize the common sensing mechanisms,inspired structures,key performance,and optimizing strategies,followed by a brief overview of the recent advances in the perspectives of system integration and algorithm implementation,and the possible roadmap of future development of tactile sensors,providing a forward-looking as well as critical discussions in the future industrial applications of flexible tactile sensors.
基金We greatly acknowledge financial support from the National Key Research and Development Program of China （No. 2016YFA0203700）, Shanghai Natural Science Foundation （No. 16ZR1440300）, the National Natural Science Foundation of China （Nos. 61275208, 51302293, and 51672303）, Shanghai Rising-Star Program （No. 14QA1404100）, Youth Innovation Promotion Associa- tion of the Chinese Academy of Sdences （No. 2013169） and Development Fund for Shanghai Talents （2015）.
文摘Precise control over the morphology,nanostructure,composition,and particle size of molecularly organic-inorganic hybrid mesoporous organosilica nanoparticles （MONs） still remains a major challenge,which severely restricts their broad applications.In this work an efficient bridged organic group-determined growth strategy has been proposed for the facile synthesis of highly dispersed and uniform MONs with multifarious Janus morphologies,nanostructures,organic-inorganic hybrid compositions,and particle sizes,which can be easily controlled simply by varying the bridged organic groups and the concentration of bis-silylated organosilica precursors used in the synthesis.In addition,the formation mechanism of Janus MONs determined by the bridged organic group has been discussed.Based on the specific structures,compositions,and asymmetric morphologies,all the synthesized Janus MONs with hollow structures （JHMONs） demonstrate excellent performances in nanomedicine as desirable drug carriers with high drug-loading efficiencies/capacities,pH-responsive drug releasing,and enhanced therapeutic efficiencies,as attractive contrastenhanced contrast agents for ultrasound imaging,and as excellent bilirubin adsorbents with noticeably high adsorption capacities and high blood compatibilities.The developed versatile synthetic strategy and the obtained JHMONs are extremely important in the development and applications of MONs,particularly in the areas of nanoscience and nanotechnology.
文摘1 Results In last years increasing interest has been devoted to the development and research of transport properties of hybrid organic/inorganic membranes. Traditionally, these membranes are used as electrolyte in fuel cells. However a number of their properties allow considering them as perspective materials for water treatment and substance purification. In this work transport properties of some ion exchange membranes modified by inorganic nanoparticles (hydrated oxides or solid acids) are discussed. ...
基金financial support from the National Natural Science Foundation of China(NSFC,Grant No.52202253,52372193,and 22293041)Natural Science Foundation of Jiangsu Province(Grant No.BK20220914)Large Instrument and Equipment Sharing Fund of Nanjing University of Aeronautics and Astronautics。
文摘Prussian blue/Prussian blue analogues(PB/PBAs)are widely used in electrochemistry and materials science fields,such as electrochemical energy storage,catalysis,water purification,and electromagnetic wave absorption,owing to their 3D open-framework structure,tunable composition,and large specific surface area.However,the co-precipitation method,which is most suitable for large-scale production of PB/PBAs,often leads to the formation of numerous crystal defects and severe lattice distortion,which significantly affects the structural stability of PB/PBAs.To obtain high-crystallinity PB/PBAs with targeted properties,precise synthesis considering various detailed conditions is especially needed.Herein,this review comprehensively summarizes the fundamental structure composition,key factors in synthesis,and applications in the electrochemistry of PB/PBAs.Unlike previous reports,this review elucidates the relationship between the physicochemical properties of PB/PBAs and their structural composition,with a particular focus on revealing the mechanisms and significance of specific preparation methods during the synthesis process,including reactant concentration,chelating agent,aging,atmosphere,temperature,and drying conditions,for achieving the precise fabrication of PB/PBAs nanomaterials.As PB/PBAs gradually become materials for multidimensional applications,we urge greater attention to the unique properties of PB/PBAs that are sustained by high crystallinity and stable crystal structures.This will effectively ensure the maximization of their advantages in practical applications.
基金National Natural Science Foundation of China(NSFC)supported this work under Grant No.32250410309,11674086,51736006,and 51772080funding from Science and Technology Department of Jiangsu Province under Grant No.BE2022029Shenzhen University under Grant No.86902/000248 also supported part of this work.
文摘The development of low-temperature solid oxide fuel cells(LT-SOFCs)is of significant importance for realizing the widespread application of SOFCs.This has stimulated a substantial materials research effort in developing high oxide-ion conductivity in the electrolyte layer of SOFCs.In this context,for the first time,a dielectric material,CaCu_(3)Ti_(4)O_(12)(CCTO)is designed for LT-SOFCs electrolyte application in this study.Both individual CCTO and its heterostructure materials with a p-type Ni_(0.8)Co_(0.15)Al_(0.05)LiO_(2−δ)(NCAL)semiconductor are evaluated as alternative electrolytes in LT-SOFC at 450–550℃.The single cell with the individual CCTO electrolyte exhibits a power output of approximately 263 mW cm^(-2) and an open-circuit voltage(OCV)of 0.95 V at 550℃,while the cell with the CCTO–NCAL heterostructure electrolyte capably delivers an improved power output of approximately 605 mW cm^(-2) along with a higher OCV over 1.0 V,which indicates the introduction of high hole-conducting NCAL into the CCTO could enhance the cell performance rather than inducing any potential short-circuiting risk.It is found that these promising outcomes are due to the interplay of the dielectric material,its structure,and overall properties that led to improve electrochemical mechanism in CCTO–NCAL.Furthermore,density functional theory calculations provide the detailed information about the electronic and structural properties of the CCTO and NCAL and their heterostructure CCTO–NCAL.Our study thus provides a new approach for developing new advanced electrolytes for LT-SOFCs.
基金sponsored by National Natural Science Foundation of China(No.52302121,No.52203386)Shanghai Sailing Program(No.23YF1454700)+1 种基金Shanghai Natural Science Foundation(No.23ZR1472700)Shanghai Post-doctoral Excellent Program(No.2022664).
文摘With vigorous developments in nanotechnology,the elaborate regulation of microstructure shows attractive potential in the design of electromagnetic wave absorbers.Herein,a hierarchical porous structure and composite heterogeneous interface are constructed successfully to optimize the electromagnetic loss capacity.The macro–micro-synergistic graphene aerogel formed by the ice template‑assisted 3D printing strategy is cut by silicon carbide nanowires(SiC_(nws))grown in situ,while boron nitride(BN)interfacial structure is introduced on graphene nanoplates.The unique composite structure forces multiple scattering of incident EMWs,ensuring the combined effects of interfacial polarization,conduction networks,and magnetic-dielectric synergy.Therefore,the as-prepared composites present a minimum reflection loss value of−37.8 dB and a wide effective absorption bandwidth(EAB)of 9.2 GHz(from 8.8 to 18.0 GHz)at 2.5 mm.Besides,relying on the intrinsic high-temperature resistance of SiC_(nws) and BN,the EAB also remains above 5.0 GHz after annealing in air environment at 600℃ for 10 h.
基金supported by the National Natural Science Foundation of China(Nos.22171102 and 22090044)the National Key R&D Program of China(Nos.2021YFF0500502 and 2023YFA1506304)+2 种基金the Jilin Province Science and Technology Development Plan(No.20230101024JC)the"Medicine+X"crossinnovation team of Bethune Medical Department of Jilin University"Leading the Charge with Open Competition"construction project(No.2022JBGS04)the Jilin University Graduate Training Office(Nos.2021JGZ08 and 2022YJSJIP20).
文摘Solid-state electrolytes(SSEs),as the core component within the next generation of key energy storage technologies-solid-state lithium batteries(SSLBs)-are significantly leading the development of future energy storage systems.Among the numerous types of SSEs,inorganic oxide garnet-structured superionic conductors Li7La3Zr2O12(LLZO)crystallized with the cubic Iaˉ3d space group have received considerable attention owing to their highly advantageous intrinsic properties encompassing reasonable lithium-ion conductivity,wide electrochemical voltage window,high shear modulus,and excellent chemical stability with electrodes.However,no SSEs possess all the properties necessary for SSLBs,thus both the ionic conductivity at room temperature and stability in ambient air regarding cubic garnet-based electrolytes are still subject to further improvement.Hence,this review comprehensively covers the nine key structural factors affecting the ion conductivity of garnet-based electrolytes comprising Li concentration,Li vacancy concentration,Li carrier concentration and mobility,Li occupancy at available sites,lattice constant,triangle bottleneck size,oxygen vacancy defects,and Li-O bonding interactions.Furthermore,the general illustration of structures and fundamental features being crucial to chemical stability is examined,including Li concentration,Li-site occupation behavior,and Li-O bonding interactions.Insights into the composition-structure-property relations among cubic garnet-based oxide ionic conductors from the perspective of their crystal structures,revealing the potential compatibility conflicts between ionic transportation and chemical stability resulting from Li-O bonding interactions.We believe that this review will lay the foundation for future reasonable structural design of oxide-based or even other types of superionic conductors,thus assisting in promoting the rapid development of alternative green and sustainable technologies.
