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Defect‐Rich CoP/Nitrogen‐Doped Carbon Composites Derived from a Metal–Organic Framework: High‐Performance Electrocatalysts for the Hydrogen Evolution Reaction
Author(s) -
Zhang Zhe,
Hao Jinhui,
Yang Wenshu,
Tang Jilin
Publication year - 2015
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201500398
Subject(s) - overpotential , tafel equation , exchange current density , electrocatalyst , metal organic framework , materials science , carbon fibers , composite number , nitrogen , hydrogen , current density , chemical engineering , chemistry , inorganic chemistry , composite material , electrochemistry , electrode , organic chemistry , physics , adsorption , quantum mechanics , engineering
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.