Correction to:Nano-Micro Letters(2025)17:117 https://doi.org/10.1007/s40820-025-01660-0 Following publication of the original article[1],the authors reported that the supplementary file needed to be updated because th...Correction to:Nano-Micro Letters(2025)17:117 https://doi.org/10.1007/s40820-025-01660-0 Following publication of the original article[1],the authors reported that the supplementary file needed to be updated because they mistakenly used the incorrect version.The original article[1]has been corrected.展开更多
Water electrolysis at high current density(1000 mA cm-2 level)with excellent durability especially in neutral electrolyte is the pivotal issue for green hydrogen from experiment to industrialization.In addition to the...Water electrolysis at high current density(1000 mA cm-2 level)with excellent durability especially in neutral electrolyte is the pivotal issue for green hydrogen from experiment to industrialization.In addition to the high intrinsic activity determined by the electronic structure,electrocatalysts are also required to be capable of fast mass transfer(electrolyte recharge and bubble overflow)and high mechanical stability.Herein,the 2D CoOOH sheet-encapsulated Ni2P into tubular arrays electrocatalytic system was proposed and realized 1000 mA cm-2-levelcurrent-density hydrogen evolution over 100 h in neutral water.In designed catalysts,2D stack structure as an adaptive material can buffer the shock of electrolyte convection,hydrogen bubble rupture,and evolution through the release of stress,which insure the long cycle stability.Meanwhile,the rich porosity between stacked units contributed the good infiltration of electrolyte and slippage of hydrogen bubbles,guaranteeing electrolyte fast recharge and bubble evolution at the high-current catalysis.Beyond that,the electron structure modulation induced by interfacial charge transfer is also beneficial to enhance the intrinsic activity.Profoundly,the multiscale coordinated regulation will provide a guide to design high-efficiency industrial electrocatalysts.展开更多
Severe polysulfide shuttling and sluggish sulfur redox kinetics significantly decrease sulfur utilization and cycling stability in lithium-sulfur batteries(LSBs).Herein,we develop a hollow CoO/CoP-Box core-shell heter...Severe polysulfide shuttling and sluggish sulfur redox kinetics significantly decrease sulfur utilization and cycling stability in lithium-sulfur batteries(LSBs).Herein,we develop a hollow CoO/CoP-Box core-shell heterostructure as a model and multifunctional catalyst modified on separators to induce interfacial charge modulation and expose more active sites for promoting the adsorption and catalytic conversion ability of sulfur species.Theoretical and experimental findings verify that the in-situ formed core-shell hetero-interface induces the formation of P-Co-O binding and charge redistribution to activate surface O active sites for binding lithium polysulfides(LiPSs)via strong Li-O bonding,thus strongly adsorbing with Li PSs.Meanwhile,the strong Li-O bonding weakens the competing Li-S bonding in LiPSs or Li2S adsorbed on CoO/CoP-Box surface,plus the hollow heterostructure provides abundant active sites and fast electron/Li+transfer,so reducing Li2S nucleation/dissolution activation energy.As expected,LSBs with CoO/CoP-Box modified separator and traditional sulfur/carbon black cathode display a large initial capacity of 1240 mA h g^(-1)and a long cycling stability with 300 cycles(~60.1%capacity retention)at 0.5C.Impressively,the thick sulfur cathode(sulfur loading:5.2 mg cm^(-2))displays a high initial areal capacity of 6.9 mA h cm^(-2).This work verifies a deep mechanism understanding and an effective strategy to induce interfacial charge modulation and enhance active sites for designing efficient dual-directional Li-S catalysts via engineering hollow core-shell hetero-structure.展开更多
Design of electrochemical active boron(B)site at solid materials to understand the relationships between the localized structure,charge state at the B site and electrocatalytic activity plays a crucial role in boostin...Design of electrochemical active boron(B)site at solid materials to understand the relationships between the localized structure,charge state at the B site and electrocatalytic activity plays a crucial role in boosting the green electrochemical synthesis of hydrogen peroxide(H_(2)O_(2))via two-electron oxygen reduction(2eORR)pathway.Herein,we demonstrate a carbon(C)and nitrogen(N)localized bonding microenvironment to modulate the charge state of B site at the boron-carbon nitride solid(BCNs)to realize the efficient selective electrocatalytic H_(2)O_(2)production.The localized chemical structure of N-B-N,N-B-C and C-B-C bonds at B site can be regulated through solid-state reaction between boron nitride(BN)and porous carbon(C)at variable temperatures.The optimized BCN-1100 achieves an outstanding H_(2)O_(2)selectivity of 89%and electron transfer number of 2.2(at 0.55 V vs.RHE),with the production of 10.55mmol/L during 2.5 h and the catalytic stability duration for 15000 cycles.Further first-principles calculations identified the dependency of localized bonding microenvironment on the OOH~*adsorption energies and relevant charge states at the boron site.The localized structure of B site with BNC_(2)-Gr configuration is predicted to be the highest 2eORR activity.展开更多
The increase in global electricity consumption has made energy efficiency a priority for governments.Consequently,there has been a focus on the efficient integration of a massive penetration of electric vehicles(EVs)i...The increase in global electricity consumption has made energy efficiency a priority for governments.Consequently,there has been a focus on the efficient integration of a massive penetration of electric vehicles(EVs)into energy markets.This study presents an assessment of various strategies for EV aggregators.In this analysis,the smart charging methodology proposed in a previous study is considered.The smart charging technique employs charging power rate modulation and considers user preferences.To adopt several strategies,this study simulates the effect of these actions in a case study of a distribution system from the city of Quito,Ecuador.Different actions are simulated,and the EV aggregator costs and technical conditions are evaluated.展开更多
This paper reports the experimental realization of efficiently sorting vector beams by polarization topological charge （PTC）. The PTC of a vector beam can be defined as the repetition number of polarization state ch...This paper reports the experimental realization of efficiently sorting vector beams by polarization topological charge （PTC）. The PTC of a vector beam can be defined as the repetition number of polarization state change along the azimuthal axis, while its sign stands for the rotating direction of the polarization. Here, a couple of liquid crystal Pancharatnam-Berry optical dements （PBOEs） have been used to introduce conjugated spatial phase modulations for two orthogonal circular polarization states. Applying these PBOEs in a 4-foptical system, our experiments show the setup can work for PTC sorting with a separation efficiency of more than 58%. This work provides an effective way to decode information from different PTCs, which may be interesting in many fields, especially in optical communication.展开更多
Comprehensive Summary,The charge transport through peptides can imitate the corresponding processes in more complicated proteins,enabling us to develop high-performance bioelectronic devices and to understand the mech...Comprehensive Summary,The charge transport through peptides can imitate the corresponding processes in more complicated proteins,enabling us to develop high-performance bioelectronic devices and to understand the mechanisms of biomolecular recognition and information transfer.While charge transport modulation through individual peptides has been achieved via various covalent strategies,the intermolecular modulation is still very challenging,which may capture the charge transport between proteins.To tackle this challenge,we used well-defined self-assembled monolayers(SAMs)of oligopeptides as a model to imitate the interface of proteins and explored an interfacial amino acid strategy for charge transport modulation.We showed that non-covalently interfaced charged amino acids(e.g.,arginine)effectively attenuated the charge transport of glutamic acid terminated polyglycine peptide SAMs.By analyzing the relationship of the charge transport with the molecular frontier orbital relative to the Fermi energy level of the electrode,the molecule-electrodes coupling(Γ),and the trends in skewness and kurtosis with voltage and the dielectric constant(εr),we showed that the attenuation was from the decreasedΓand the reduced polarizability.We present an efficient strategy to modulate the charge transport of oligopeptide-SAM junctions by intermolecular interactions,which will advance our understanding of charge transport in biological systems and facilitate developing future electronics.展开更多
Developing advanced hydrogen storage materials with high capacity and efficient reversibility is a crucial aspect for utilizing hydrogen source as a promising alternate to fossil fuels.In this paper,we have systematic...Developing advanced hydrogen storage materials with high capacity and efficient reversibility is a crucial aspect for utilizing hydrogen source as a promising alternate to fossil fuels.In this paper,we have systematically investigated the hydrogen storage properties of neutral and negatively charged C_(9)N_(4) monolayer based on density functional theory(DFT).Our foundings indicate that injecting additional electrons into the adsorbent significantly boosts the adsorption capacity of C_(9)N_(4) monolayer to H2 molecules.The gravimetric density of negatively charged C_(9)N_(4) monolayer can reach up to 10.80 wt% when fully covered with hydrogen.Unlike other hydrogen storage methods,the storage and release processes happen automatically upon introducing or removing extra electrons.Moreover,these operations can be easily adjusted through activating or deactivating the charging voltage.As a result,the method is easily reversible and has tunable kinetics without requiring particular activators.Significantly,C_(9)N_(4) is proved to be a suitable candidate for efficient electron injection/release due to its well electrical conductivity.Our work can serve as a valuable guide in the quest for a novel category of materials for hydrogen storage with high capacity.展开更多
Organic semiconductors are inherently soft,making it possible to increase their mobilities by strains.Such a unique feature can be exploited directly in flexible electronics for improved device performance.The 2,7-dio...Organic semiconductors are inherently soft,making it possible to increase their mobilities by strains.Such a unique feature can be exploited directly in flexible electronics for improved device performance.The 2,7-dioctyl[1]benzothieno[3,2-b][1]-benzothiophene derivative,C8-BTBT is one of the best small-molecule hole transport materials.Here,we demonstrated its band structure modulation under strains by combining the non-equilibrium molecular dynamics simulations and first-principles calculations.We found that the C8-BTBT lattice undergoes a transition from monoclinic to triclinic crystal system at the temperature below 160 K.Both shear and uniaxial strains were applied to the low-temperature triclinic phase of C8-BTBT,and polymorphism was identified in the shear process.The band width enhancement is up to 8%under 2%of compressive strain along the x direction,and 14%under 4%of tensile strain along the y direction.The band structure modulation of C8-BTBT can be well related to its herringbone packing motifs,where the edge to face and edge to edge pairs constitute two-dimensional charge transport pathways and their electronic overlaps determine the band widths along the two directions respectively.These findings pave the way for utilizing strains towards improved performance of organic semiconductors on flexible substrates,for example,by bending the substrates.展开更多
文摘Correction to:Nano-Micro Letters(2025)17:117 https://doi.org/10.1007/s40820-025-01660-0 Following publication of the original article[1],the authors reported that the supplementary file needed to be updated because they mistakenly used the incorrect version.The original article[1]has been corrected.
基金financially supported by the National Natural Science Foundation of China(21761004,21805102,21701035 and 21825103)the Hubei Provincial Natural Science Foundation of China(2019CFA002)+2 种基金the specific research project of Guangxi for research bases and talents(AD18126005)the Fundamental Research Funds for the Central University(Grant No.2019kfyXMBZ018)the training program for thousands of backbone young teachers in Guangxi universities。
文摘Water electrolysis at high current density(1000 mA cm-2 level)with excellent durability especially in neutral electrolyte is the pivotal issue for green hydrogen from experiment to industrialization.In addition to the high intrinsic activity determined by the electronic structure,electrocatalysts are also required to be capable of fast mass transfer(electrolyte recharge and bubble overflow)and high mechanical stability.Herein,the 2D CoOOH sheet-encapsulated Ni2P into tubular arrays electrocatalytic system was proposed and realized 1000 mA cm-2-levelcurrent-density hydrogen evolution over 100 h in neutral water.In designed catalysts,2D stack structure as an adaptive material can buffer the shock of electrolyte convection,hydrogen bubble rupture,and evolution through the release of stress,which insure the long cycle stability.Meanwhile,the rich porosity between stacked units contributed the good infiltration of electrolyte and slippage of hydrogen bubbles,guaranteeing electrolyte fast recharge and bubble evolution at the high-current catalysis.Beyond that,the electron structure modulation induced by interfacial charge transfer is also beneficial to enhance the intrinsic activity.Profoundly,the multiscale coordinated regulation will provide a guide to design high-efficiency industrial electrocatalysts.
基金supported by the National Natural Science Foundation of China(51972066)the Natural Science Foundation of Guangdong Province of China(2021A1515011718)the Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme 2017。
文摘Severe polysulfide shuttling and sluggish sulfur redox kinetics significantly decrease sulfur utilization and cycling stability in lithium-sulfur batteries(LSBs).Herein,we develop a hollow CoO/CoP-Box core-shell heterostructure as a model and multifunctional catalyst modified on separators to induce interfacial charge modulation and expose more active sites for promoting the adsorption and catalytic conversion ability of sulfur species.Theoretical and experimental findings verify that the in-situ formed core-shell hetero-interface induces the formation of P-Co-O binding and charge redistribution to activate surface O active sites for binding lithium polysulfides(LiPSs)via strong Li-O bonding,thus strongly adsorbing with Li PSs.Meanwhile,the strong Li-O bonding weakens the competing Li-S bonding in LiPSs or Li2S adsorbed on CoO/CoP-Box surface,plus the hollow heterostructure provides abundant active sites and fast electron/Li+transfer,so reducing Li2S nucleation/dissolution activation energy.As expected,LSBs with CoO/CoP-Box modified separator and traditional sulfur/carbon black cathode display a large initial capacity of 1240 mA h g^(-1)and a long cycling stability with 300 cycles(~60.1%capacity retention)at 0.5C.Impressively,the thick sulfur cathode(sulfur loading:5.2 mg cm^(-2))displays a high initial areal capacity of 6.9 mA h cm^(-2).This work verifies a deep mechanism understanding and an effective strategy to induce interfacial charge modulation and enhance active sites for designing efficient dual-directional Li-S catalysts via engineering hollow core-shell hetero-structure.
基金financially supported by the National Natural Science Foundation of China(Nos.22161036,11904187,21961024 and 21961025)Natural Science Foundation of Inner Mongolia(Nos.2018JQ05 and 2019BS02007)+2 种基金Incentive Funding from Nano Innovation Institute(NII)of Inner Mongolia Minzu Universitythe Inner Mongolia Autonomous Region Funding Project for Science&Technology Achievement Transformation(Nos.CGZH2018156 and 2019GG261)Doctoral Scientific Research Foundation of Inner Mongolia Minzu University(Nos.BS437 and BS480)。
文摘Design of electrochemical active boron(B)site at solid materials to understand the relationships between the localized structure,charge state at the B site and electrocatalytic activity plays a crucial role in boosting the green electrochemical synthesis of hydrogen peroxide(H_(2)O_(2))via two-electron oxygen reduction(2eORR)pathway.Herein,we demonstrate a carbon(C)and nitrogen(N)localized bonding microenvironment to modulate the charge state of B site at the boron-carbon nitride solid(BCNs)to realize the efficient selective electrocatalytic H_(2)O_(2)production.The localized chemical structure of N-B-N,N-B-C and C-B-C bonds at B site can be regulated through solid-state reaction between boron nitride(BN)and porous carbon(C)at variable temperatures.The optimized BCN-1100 achieves an outstanding H_(2)O_(2)selectivity of 89%and electron transfer number of 2.2(at 0.55 V vs.RHE),with the production of 10.55mmol/L during 2.5 h and the catalytic stability duration for 15000 cycles.Further first-principles calculations identified the dependency of localized bonding microenvironment on the OOH~*adsorption energies and relevant charge states at the boron site.The localized structure of B site with BNC_(2)-Gr configuration is predicted to be the highest 2eORR activity.
文摘The increase in global electricity consumption has made energy efficiency a priority for governments.Consequently,there has been a focus on the efficient integration of a massive penetration of electric vehicles(EVs)into energy markets.This study presents an assessment of various strategies for EV aggregators.In this analysis,the smart charging methodology proposed in a previous study is considered.The smart charging technique employs charging power rate modulation and considers user preferences.To adopt several strategies,this study simulates the effect of these actions in a case study of a distribution system from the city of Quito,Ecuador.Different actions are simulated,and the EV aggregator costs and technical conditions are evaluated.
基金National Natural Science Foundation of China(NSFC)(61490710,61705132,61775142)Science and Technology Planning Project of Guangdong Province(2016B050501005)Specialized Research Fund for the Shenzhen Strategic Emerging Industries Development(JCYJ20170412105812811)
文摘This paper reports the experimental realization of efficiently sorting vector beams by polarization topological charge （PTC）. The PTC of a vector beam can be defined as the repetition number of polarization state change along the azimuthal axis, while its sign stands for the rotating direction of the polarization. Here, a couple of liquid crystal Pancharatnam-Berry optical dements （PBOEs） have been used to introduce conjugated spatial phase modulations for two orthogonal circular polarization states. Applying these PBOEs in a 4-foptical system, our experiments show the setup can work for PTC sorting with a separation efficiency of more than 58%. This work provides an effective way to decode information from different PTCs, which may be interesting in many fields, especially in optical communication.
基金supported by financial support from the National Natural Science Foundation of China(21974102 and 21705019)the National Key R&D Program of China(2018YFA0703700).
文摘Comprehensive Summary,The charge transport through peptides can imitate the corresponding processes in more complicated proteins,enabling us to develop high-performance bioelectronic devices and to understand the mechanisms of biomolecular recognition and information transfer.While charge transport modulation through individual peptides has been achieved via various covalent strategies,the intermolecular modulation is still very challenging,which may capture the charge transport between proteins.To tackle this challenge,we used well-defined self-assembled monolayers(SAMs)of oligopeptides as a model to imitate the interface of proteins and explored an interfacial amino acid strategy for charge transport modulation.We showed that non-covalently interfaced charged amino acids(e.g.,arginine)effectively attenuated the charge transport of glutamic acid terminated polyglycine peptide SAMs.By analyzing the relationship of the charge transport with the molecular frontier orbital relative to the Fermi energy level of the electrode,the molecule-electrodes coupling(Γ),and the trends in skewness and kurtosis with voltage and the dielectric constant(εr),we showed that the attenuation was from the decreasedΓand the reduced polarizability.We present an efficient strategy to modulate the charge transport of oligopeptide-SAM junctions by intermolecular interactions,which will advance our understanding of charge transport in biological systems and facilitate developing future electronics.
基金The work was founded by Henan Scientific Research Fund for Returned Scholars,the Young Scientist Project of Henan Province(Grant No.225200810103)the Program for Science&Technology Innovation Talents in Universities of Henan Province(Grant No.24HASTIT013)+3 种基金Henan College Key Research Project(Grant No.24A430002)the Natural Science Foundation of Henan Province(Grant No.232300420128)the Scientific Research Innovation Team Project of Anyang Normal University(Grant No.2023AYSYKYCXTD04)the College Students Innovation Fund of Anyang Normal University(Grant No.202310479077).
文摘Developing advanced hydrogen storage materials with high capacity and efficient reversibility is a crucial aspect for utilizing hydrogen source as a promising alternate to fossil fuels.In this paper,we have systematically investigated the hydrogen storage properties of neutral and negatively charged C_(9)N_(4) monolayer based on density functional theory(DFT).Our foundings indicate that injecting additional electrons into the adsorbent significantly boosts the adsorption capacity of C_(9)N_(4) monolayer to H2 molecules.The gravimetric density of negatively charged C_(9)N_(4) monolayer can reach up to 10.80 wt% when fully covered with hydrogen.Unlike other hydrogen storage methods,the storage and release processes happen automatically upon introducing or removing extra electrons.Moreover,these operations can be easily adjusted through activating or deactivating the charging voltage.As a result,the method is easily reversible and has tunable kinetics without requiring particular activators.Significantly,C_(9)N_(4) is proved to be a suitable candidate for efficient electron injection/release due to its well electrical conductivity.Our work can serve as a valuable guide in the quest for a novel category of materials for hydrogen storage with high capacity.
基金supported by the National Natural Science Foundation of China(21273124,21290190,21290191 and 91333202)the Innovative Research Groups of the National Science Foundation of China(21421064)the National Basic Research Program of China(2013CB933503 and 2015CB655002)
文摘Organic semiconductors are inherently soft,making it possible to increase their mobilities by strains.Such a unique feature can be exploited directly in flexible electronics for improved device performance.The 2,7-dioctyl[1]benzothieno[3,2-b][1]-benzothiophene derivative,C8-BTBT is one of the best small-molecule hole transport materials.Here,we demonstrated its band structure modulation under strains by combining the non-equilibrium molecular dynamics simulations and first-principles calculations.We found that the C8-BTBT lattice undergoes a transition from monoclinic to triclinic crystal system at the temperature below 160 K.Both shear and uniaxial strains were applied to the low-temperature triclinic phase of C8-BTBT,and polymorphism was identified in the shear process.The band width enhancement is up to 8%under 2%of compressive strain along the x direction,and 14%under 4%of tensile strain along the y direction.The band structure modulation of C8-BTBT can be well related to its herringbone packing motifs,where the edge to face and edge to edge pairs constitute two-dimensional charge transport pathways and their electronic overlaps determine the band widths along the two directions respectively.These findings pave the way for utilizing strains towards improved performance of organic semiconductors on flexible substrates,for example,by bending the substrates.
