• 文献标题:   Ternary NiCoP nanoparticles assembled on graphene for high-performance lithium-ion batteries and supercapacitors
  • 文献类型:   Article
  • 作  者:   WANG CD, QIAN YY, YANG J, XING SQ, DING X, YANG Q
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   USTC
  • 被引频次:   19
  • DOI:   10.1039/c7ra02910a
  • 出版年:   2017

▎ 摘  要

Transition metal phosphides have received considerable interest for electrochemical energy storage/conversion and catalysis. In this work, we designed a unique hybrid of NiCoP nanoparticles adhered on quasi-planar structured graphene by assembling 8.5 nm ternary NiCoP nanoparticles on graphene through a solution-phase self-assembly strategy. The NiCoP catalyst in the form of small-size particles wrapped in graphene provided more active sites, a buffer for volume alteration and enhanced conductivity for electrochemical reactions. Typically, the hybrid catalyst demonstrates a high specific capacity of around 532 mA h g(-1), excellent cycling stability and superior rate performance when the hybrid material is evaluated as an anode material for lithium-ion batteries, and it shows excellent electrochemical properties with a specific capacitance of 646 F g (-1) at 4 A g(-1), maintaining 91% of this initial value after 2000 cycles functioning as a supercapacitor.