典型文献
Rational construction of CoP@C hollow structure for ultrafast and stable sodium energy storage
文献摘要:
The development of transition metal phosphides as potential anode materials of sodium-ion batteries has been substantially hindered by their sluggish kinetics and significant volume change during the sodiation/desodiation process.In this work,we put forward a rational design strategy to construct a hollow-structured CoP@C com-posite to achieve ultrafast and durable sodium energy storage.The CoP@C composite with a well-defined hollow dodecahedron architecture has been synthesized via a stepwise treatment of carbonization and pohsphorization on ZIF-67.The unique hollow carbon framework not only provides high-speed electron/ion transportation pathways for CoP to enable fast sodiation kinetics,but also accom-modates large volume change to stabilize the electrode structure.As a consequence,the CoP@C composite could exhibit an ultra-high rate capability of 105 mAh·g-1 at a current density of 30 A·g-1,and a long-term cycling life-time.The present study will pave a fresh strategy for exploring advanced high-power anode materials for sodium ion batteries.
文献关键词:
中图分类号:
作者姓名:
Ling-Bo Ren;Wei Hua;Zhi-Dong Hou;Jian-Gan Wang
作者机构:
State Key Laboratory of Solidification Processing,Center for Nano Energy Materials,School of Materials Science and Engineering,Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene(NPU),Xi'an 710072,China
文献出处:
引用格式:
[1]Ling-Bo Ren;Wei Hua;Zhi-Dong Hou;Jian-Gan Wang-.Rational construction of CoP@C hollow structure for ultrafast and stable sodium energy storage)[J].稀有金属(英文版),2022(06):1859-1869
A类:
pohsphorization,modates
B类:
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AB值:
0.582882
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