Metal-organic frameworks(MOFs)represent a revolutionary class of materials in the field of energy storage,particularly for aqueous batteries(ABs).Distinguished by their large surface area,tuneable porosity,and adaptab...Metal-organic frameworks(MOFs)represent a revolutionary class of materials in the field of energy storage,particularly for aqueous batteries(ABs).Distinguished by their large surface area,tuneable porosity,and adaptable chemical activity,MOFs offer significant advantages over conventional materials in battery applications.This article provides a thorough analysis of the crucial role that MOFs play in improving the efficiency of ABs.It includes a concise review of the current research progress,emphasizing the fundamental processes by which MOFs enhance electrochemical efficiency.Additionally,the review examines the synthesis and design strategies for the structure of MOFs to maximize ion transport,improve conductivity,and enhance stability.The structural advantages,chemical versatility,stability,durability and functionalization potential of MOFs are comprehensively discussed.Moreover,we explore the distinct advantages of MOFs in overcoming common challenges encountered in ABs,such as declining capacity,inadequate cycling stability,and limited energy density.This paper also highlights the future research directions needed to fully harness their potential.Our goal is to develop a fundamental understanding and stimulate further progress in the use of MOFs for advanced energy storage solutions.展开更多
In light of cost-effectiveness,high volumetric capacity,and abundant supplies on Earth of aluminum metal,the rechargeable aluminum battery(RAB)represents a cutting-edge alternative for energy storage devices.RABs have...In light of cost-effectiveness,high volumetric capacity,and abundant supplies on Earth of aluminum metal,the rechargeable aluminum battery(RAB)represents a cutting-edge alternative for energy storage devices.RABs have achieved significant progress as a result of tireless efforts;however,challenges like as expensive ionic liquid electrolytes,a restricted voltage window of aqueous electrolytes,corroded anode,and rapid capacity degradation limit their practical applications.In terms of increasing RABmileage,electrode materials can be regarded as the foundation of battery performance.Metal-organic frameworks(MOFs),which have customizable topologies,multiple active sites,and various metal centers and ligands,are promising electrode materials.Herein,for the first time,we deliver in detail the recent advancement ofMOFs in RABs.The relationship on structure-properties-performance of MOFs is thoroughly discussed.MOF and MOF-derived electrode materials are first summarized.In aluminum sulfur/selenium batteries,MOF can serve as a host to capture the sulfides or selenides.Furthermore,the MOF as catalysts for aluminum-air batteries are provided.Then we focused on the challenges and opportunities that RABs would face in the future,and some prospects are presented.We believe this account will facilitate the exploration of MOFs in RABs and give more inspiration for discovering advanced RABs.展开更多
The field of tissue engineering has witnessed significant progress with the emergence of three-dimensional(3D)printing technologies.The ability to fabricate precise structures with complex geometries combined with the...The field of tissue engineering has witnessed significant progress with the emergence of three-dimensional(3D)printing technologies.The ability to fabricate precise structures with complex geometries combined with the in-tegration of two-dimensional(2D)materials,including graphene,graphene oxide,and transition metal dichalco-genides,has provided novel opportunities.This integration enables the fabrication of functional structures with tailored properties,leveraging the exceptional mechanical,electrical,and chemical characteristics of these mate-rials,in conjunction with the design flexibility offered by 3D printing.Herein,we review the recent advancements in the selection of appropriate 2D materials,diverse 3D printing methods employed for integration,and charac-terization techniques used to evaluate the performance of the resulting constructs.The successful integration of 3D printing and 2D materials holds immense potential for advancing tissue engineering and paving the way for personalized medicine,regenerative therapies,and point-of-care diagnostics.展开更多
Lithium metal batteries are regarded as a solution for maximizing the energy density of Li-ion batteries.Ideally,the Li metal anode should be thin enough with a low negative to positive capacity ratio(N/P ratio≤2),th...Lithium metal batteries are regarded as a solution for maximizing the energy density of Li-ion batteries.Ideally,the Li metal anode should be thin enough with a low negative to positive capacity ratio(N/P ratio≤2),thus conserving the high-energy density nature of Li-metal batteries.However,reducing the lithium metal thickness limits cycling stability due to inadequate lithium reserves to counter dead lithium generation.To address this,we construct a three-dimensional(3D)polyvinylidene fluoride(PVDF)nanofiber network incorporating Li_(2)CO_(3)as a lithium host on a copper current collector via electrospinning.Incorporating Li_(2)CO_(3)reduces the PVDF crystallinity and promotes electrolyte wettability,enhancing Li-ion diffusion and allowing uniform Li encapsulation on the nanofiber networks.Electrochemical impedance spectroscopy also reveals that an optimized Li_(2)CO_(3)content in the nanofiber network reduces charge transfer resistance,further enabling homogeneous lithium deposition across the nanostructure.This architecture significantly improves the electrochemical performance,delivering a stable plating and stripping cycle life up to 330 h in a half-cell configuration.In a full-cell configuration with an NMC622 cathode at an N/P ratio of 2,the optimized PVDF-Li_(2)CO_(3)nanofiber network retains 71.6%of its initial capacity after 200 cycles,compared to the premature failure(after 60 cycles)of conventional Li-plated Cu anode.This work presents a straightforward and scalable approach to stabilizing low N/P ratio lithium metal batteries,advancing their practical application.展开更多
Developing a high-performance ORR(oxygen reduction reaction)catalyst at low cost has been a challenge for the commercialization of high-energy density and low production cost aluminium-air batteries.Herein,we report a...Developing a high-performance ORR(oxygen reduction reaction)catalyst at low cost has been a challenge for the commercialization of high-energy density and low production cost aluminium-air batteries.Herein,we report a catalyst,prepared by pyrolyzing the shell waste of peanut or pistachio,followed by concurrent nitrogen-doping and FeCo alloy nanoparticle loading.Large surface area(1246.4m2 g-1)of pistachio shell-derived carbon can be obtained by combining physical and chemical treatments of the biomass.Such a large surface area carbon eases nitrogen doping and provides more nucleation sites for FeCo alloy growth,furnishing the resultant catalyst(FeCo/N-C-Pistachio)with higher content of N,Fe,and Co with a larger electrochemically active surface area as compared to its peanut shell counterpart(FeCo/N-C-Peanut).The FeCo/N-CPistachio displays a promising onset potential of 0.93V vs.RHE and a high saturating current density of 4.49mAcm-2,suggesting its high ORR activity.An aluminium-air battery,with FeCo/N-C-Pistachio catalyst on the cathode and coupled with a commercial aluminium 1100 anode,delivers a power density of 99.7mWcm-2 and a stable discharge voltage at 1.37V over 5 h of operation.This high-performance,low-cost,and environmentally sustainable electrocatalyst shows potential for large-scale adoption of aluminium-air batteries.展开更多
基金supported by the Agency for Science,Technology and Research(ASTAR)Manufacturing,Trade and Connectivity(MTC)Program(M23L9b0052)the Indonesian Endowment Fund for Education(LPDP)on behalf of the Indonesian Ministry of Education,Culture,Research,and Technology,and managed under INSPIRASI Program(Contract No.6635/E3/KL.02.02/2023)。
文摘Metal-organic frameworks(MOFs)represent a revolutionary class of materials in the field of energy storage,particularly for aqueous batteries(ABs).Distinguished by their large surface area,tuneable porosity,and adaptable chemical activity,MOFs offer significant advantages over conventional materials in battery applications.This article provides a thorough analysis of the crucial role that MOFs play in improving the efficiency of ABs.It includes a concise review of the current research progress,emphasizing the fundamental processes by which MOFs enhance electrochemical efficiency.Additionally,the review examines the synthesis and design strategies for the structure of MOFs to maximize ion transport,improve conductivity,and enhance stability.The structural advantages,chemical versatility,stability,durability and functionalization potential of MOFs are comprehensively discussed.Moreover,we explore the distinct advantages of MOFs in overcoming common challenges encountered in ABs,such as declining capacity,inadequate cycling stability,and limited energy density.This paper also highlights the future research directions needed to fully harness their potential.Our goal is to develop a fundamental understanding and stimulate further progress in the use of MOFs for advanced energy storage solutions.
基金provided by the ASTAR MTC programmatic project under Grant No.M23L9b0052Indonesia-NTU Singapore Institute of Research for Sustainability and Innovation(INSPIRASI)under Contract No.6635/E3/KL.02.02/2023Singapore NRF Singapore-China flagship program under Grant No.023740-00001.
文摘In light of cost-effectiveness,high volumetric capacity,and abundant supplies on Earth of aluminum metal,the rechargeable aluminum battery(RAB)represents a cutting-edge alternative for energy storage devices.RABs have achieved significant progress as a result of tireless efforts;however,challenges like as expensive ionic liquid electrolytes,a restricted voltage window of aqueous electrolytes,corroded anode,and rapid capacity degradation limit their practical applications.In terms of increasing RABmileage,electrode materials can be regarded as the foundation of battery performance.Metal-organic frameworks(MOFs),which have customizable topologies,multiple active sites,and various metal centers and ligands,are promising electrode materials.Herein,for the first time,we deliver in detail the recent advancement ofMOFs in RABs.The relationship on structure-properties-performance of MOFs is thoroughly discussed.MOF and MOF-derived electrode materials are first summarized.In aluminum sulfur/selenium batteries,MOF can serve as a host to capture the sulfides or selenides.Furthermore,the MOF as catalysts for aluminum-air batteries are provided.Then we focused on the challenges and opportunities that RABs would face in the future,and some prospects are presented.We believe this account will facilitate the exploration of MOFs in RABs and give more inspiration for discovering advanced RABs.
基金the ITB Research Fund 2023 scheme of the Institut Teknologi Bandung(PN-6-02-2023).
文摘The field of tissue engineering has witnessed significant progress with the emergence of three-dimensional(3D)printing technologies.The ability to fabricate precise structures with complex geometries combined with the in-tegration of two-dimensional(2D)materials,including graphene,graphene oxide,and transition metal dichalco-genides,has provided novel opportunities.This integration enables the fabrication of functional structures with tailored properties,leveraging the exceptional mechanical,electrical,and chemical characteristics of these mate-rials,in conjunction with the design flexibility offered by 3D printing.Herein,we review the recent advancements in the selection of appropriate 2D materials,diverse 3D printing methods employed for integration,and charac-terization techniques used to evaluate the performance of the resulting constructs.The successful integration of 3D printing and 2D materials holds immense potential for advancing tissue engineering and paving the way for personalized medicine,regenerative therapies,and point-of-care diagnostics.
基金funded by Indonesian Endowment Fund for Education(LPDP)on behalf of Indonesian Ministry of Education,Culture,Research,and Technology,and managed under INSPIRASI Program(No.6635/E3/KL.02.02/2023).
文摘Lithium metal batteries are regarded as a solution for maximizing the energy density of Li-ion batteries.Ideally,the Li metal anode should be thin enough with a low negative to positive capacity ratio(N/P ratio≤2),thus conserving the high-energy density nature of Li-metal batteries.However,reducing the lithium metal thickness limits cycling stability due to inadequate lithium reserves to counter dead lithium generation.To address this,we construct a three-dimensional(3D)polyvinylidene fluoride(PVDF)nanofiber network incorporating Li_(2)CO_(3)as a lithium host on a copper current collector via electrospinning.Incorporating Li_(2)CO_(3)reduces the PVDF crystallinity and promotes electrolyte wettability,enhancing Li-ion diffusion and allowing uniform Li encapsulation on the nanofiber networks.Electrochemical impedance spectroscopy also reveals that an optimized Li_(2)CO_(3)content in the nanofiber network reduces charge transfer resistance,further enabling homogeneous lithium deposition across the nanostructure.This architecture significantly improves the electrochemical performance,delivering a stable plating and stripping cycle life up to 330 h in a half-cell configuration.In a full-cell configuration with an NMC622 cathode at an N/P ratio of 2,the optimized PVDF-Li_(2)CO_(3)nanofiber network retains 71.6%of its initial capacity after 200 cycles,compared to the premature failure(after 60 cycles)of conventional Li-plated Cu anode.This work presents a straightforward and scalable approach to stabilizing low N/P ratio lithium metal batteries,advancing their practical application.
文摘Developing a high-performance ORR(oxygen reduction reaction)catalyst at low cost has been a challenge for the commercialization of high-energy density and low production cost aluminium-air batteries.Herein,we report a catalyst,prepared by pyrolyzing the shell waste of peanut or pistachio,followed by concurrent nitrogen-doping and FeCo alloy nanoparticle loading.Large surface area(1246.4m2 g-1)of pistachio shell-derived carbon can be obtained by combining physical and chemical treatments of the biomass.Such a large surface area carbon eases nitrogen doping and provides more nucleation sites for FeCo alloy growth,furnishing the resultant catalyst(FeCo/N-C-Pistachio)with higher content of N,Fe,and Co with a larger electrochemically active surface area as compared to its peanut shell counterpart(FeCo/N-C-Peanut).The FeCo/N-CPistachio displays a promising onset potential of 0.93V vs.RHE and a high saturating current density of 4.49mAcm-2,suggesting its high ORR activity.An aluminium-air battery,with FeCo/N-C-Pistachio catalyst on the cathode and coupled with a commercial aluminium 1100 anode,delivers a power density of 99.7mWcm-2 and a stable discharge voltage at 1.37V over 5 h of operation.This high-performance,low-cost,and environmentally sustainable electrocatalyst shows potential for large-scale adoption of aluminium-air batteries.
