Compared with other metal anodes such as lithium,sodium and potassium,carbon materials exhibit low redox potential,enhanced safety,significant low-cost advantages and decent electrochemical performance for large-scale...Compared with other metal anodes such as lithium,sodium and potassium,carbon materials exhibit low redox potential,enhanced safety,significant low-cost advantages and decent electrochemical performance for large-scale metal-ion batteries and supercapacitors.Among the various carbon precursors,low-cost coal and coal derivatives are preferred due to their unique carbon structure with high carbon content.A variety of coal-derived carbon materials have been constructed using different strategies and have been investigated for diverse electrochemical energy storage due to their specific microstructures.In the short term,the electrochemical performance of coal-derived carbon materials is normal.However,it is imperative to develop low-cost and high-performance coal-derived carbon materials in order to reduce the cost of energy storage systems.Therefore,this review focuses on the microstructure modulation strategies for coal-based derived carbon materials to further enhance their electrochemical performance through heteroatom doping,defect engineering,interlayer engineering,crystallinity regulation,pore regulation and multi-strategy synergy.In addition,this review summarizes the enhancement mechanisms for modification strategies and analyses their limitations.Furthermore,current challenges and future research directions for the development of high-performance coal-based derived carbon materials are proposed in this review.It is anticipated that through novel modification strategies,coal-derived carbon materials will exhibit electrochemical performance comparable to that of carbon materials prepared from other precursors.展开更多
Exploitation of the efficient and cost-effective electrode materials is urgently desirable for the development of advanced energy devices.With the unique features of good electronic conductivity,structure flexibility,...Exploitation of the efficient and cost-effective electrode materials is urgently desirable for the development of advanced energy devices.With the unique features of good electronic conductivity,structure flexibility,and desirable physicochemical property,carbon-based nanomaterials have attracted enormous research attention as efficient electrode materials.Electronic and microstructure engineering of carbon-based nanomaterials are the keys to regulate the electrocatalytic properties for the specific redox reactions of advanced metal-based batteries.However,the critical roles of carbon-based electrocatalysts for rechargeable metal batteries have not been comprehensively discussed.With the basic introduction on the electronic and microstructure engineering strategies,we summarize the recent advances on the rational design of carbon-based electrocatalysts for the important redox reactions in various metal-air batteries and metal-halogen batteries.The relationships between the composition,structure,and the electrocatalytic properties of carbon-based materials were well-addressed to enhance the battery performance.The overview of present challenges and opportunities of the carbon-based active materials for future energy-related applications was also discussed.展开更多
基金supported by the National Natural Science Foundation of China(No.22271211)the Natural Science Foundation of Shanxi Provincee(Nos.20210302123107 and 202202060301018)Huzhou Key Laboratory of Smart and Clean Energy(No.24CE03).
文摘Compared with other metal anodes such as lithium,sodium and potassium,carbon materials exhibit low redox potential,enhanced safety,significant low-cost advantages and decent electrochemical performance for large-scale metal-ion batteries and supercapacitors.Among the various carbon precursors,low-cost coal and coal derivatives are preferred due to their unique carbon structure with high carbon content.A variety of coal-derived carbon materials have been constructed using different strategies and have been investigated for diverse electrochemical energy storage due to their specific microstructures.In the short term,the electrochemical performance of coal-derived carbon materials is normal.However,it is imperative to develop low-cost and high-performance coal-derived carbon materials in order to reduce the cost of energy storage systems.Therefore,this review focuses on the microstructure modulation strategies for coal-based derived carbon materials to further enhance their electrochemical performance through heteroatom doping,defect engineering,interlayer engineering,crystallinity regulation,pore regulation and multi-strategy synergy.In addition,this review summarizes the enhancement mechanisms for modification strategies and analyses their limitations.Furthermore,current challenges and future research directions for the development of high-performance coal-based derived carbon materials are proposed in this review.It is anticipated that through novel modification strategies,coal-derived carbon materials will exhibit electrochemical performance comparable to that of carbon materials prepared from other precursors.
基金the National Natural Scientific Foundation of China(No.22175108)the Natural Scientific Foundation of Shandong Province(No.ZR2020JQ09)the China Postdoctoral Science Foundation(No.2020M672054).
文摘Exploitation of the efficient and cost-effective electrode materials is urgently desirable for the development of advanced energy devices.With the unique features of good electronic conductivity,structure flexibility,and desirable physicochemical property,carbon-based nanomaterials have attracted enormous research attention as efficient electrode materials.Electronic and microstructure engineering of carbon-based nanomaterials are the keys to regulate the electrocatalytic properties for the specific redox reactions of advanced metal-based batteries.However,the critical roles of carbon-based electrocatalysts for rechargeable metal batteries have not been comprehensively discussed.With the basic introduction on the electronic and microstructure engineering strategies,we summarize the recent advances on the rational design of carbon-based electrocatalysts for the important redox reactions in various metal-air batteries and metal-halogen batteries.The relationships between the composition,structure,and the electrocatalytic properties of carbon-based materials were well-addressed to enhance the battery performance.The overview of present challenges and opportunities of the carbon-based active materials for future energy-related applications was also discussed.
