Defect‐Rich CoP/Nitrogen‐Doped Carbon Composites Derived from a Metal–Organic Framework: High‐Performance Electrocatalysts for the Hydrogen Evolution Reaction
Defect‐Rich CoP/Nitrogen‐Doped Carbon Composites Derived from a Metal–Organic Framework: High‐Performance Electrocatalysts for the Hydrogen Evolution Reaction
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DOI：
10.1002/cctc.201500398
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发表时间：
2015-07
期刊：
影响因子：
4.5
通讯作者：
Zhe Zhang;Jinhui Hao;Wenshu Yang;Jilin Tang
中科院分区：
文献类型：
--
作者：
Zhe Zhang;Jinhui Hao;Wenshu Yang;Jilin Tang
首次报道了通过低温磷化工艺由ZIF-67衍生的富缺陷CoP/氮掺杂碳复合材料。作为析氢反应电催化剂，所获得的CoP-N-C具有高HER活性和良好的稳定性，具有31 mV的低起始过电位、42 mV dec−1的小塔菲尔斜率、1.6×10−1 mA cm−2的大交换电流密度和10 mA cm−2的过电位91 mV电流密度。
A defect‐rich CoP/nitrogen‐doped carbon composite is reported for the first time derived from ZIF‐67 by means of low‐temperature phosphidation process. As a hydrogen evolution reaction electrocatalyst, the obtained CoP‐N‐C has high HER activity and good stability with a low onset overpotential of 31 mV, a small Tafel slope of 42 mV dec−1, a large exchange current density of 1.6×10−1 mA cm−2, and a 10 mA cm−2 current density at overpotential 91 mV.