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Core‐Shell Structured CoP@MoS 2 Electrocatalysts for Enhanced Hydrogen Evolution Reaction
Author(s) -
Chen Danyang,
Xiao Jinghao,
Zhou Hu,
Yuan Aihua
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202000195
Subject(s) - overpotential , tafel equation , materials science , catalysis , chemical engineering , core (optical fiber) , nanotechnology , current density , electrode , chemistry , composite material , electrochemistry , engineering , organic chemistry , physics , quantum mechanics
The hierarchical CoP@MoS 2 hybrid was constructed by a solvothermal reaction of MoS 2 nanosheets and CoP nanocubes. The resultant product exhibited a well‐defined core‐shell structure, in which MoS 2 sheets were decorated on the surface of CoP nanocubes. As electrocatalyts of hydrogen evolution reaction (HER), the hybrid displayed a highly superior catalytic activity to pure MoS 2 in acid media with a low overpotential of 201 mV at the current density of 10 mA cm −2 , a small Tafel slope of 70.4 mV dec −1 , and good stability. The excellent HER performance benefitted from the core‐shell morphology as well as the synergistic interaction between MoS 2 and CoP components.