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Porous Cobalt Phosphide Polyhedrons with Iron Doping as an Efficient Bifunctional Electrocatalyst
Author(s) -
Li Feng,
Bu Yunfei,
Lv Zijian,
Mahmood Javeed,
Han GaoFeng,
Ahmad Ishfaq,
Kim Guntae,
Zhong Qin,
Baek JongBeom
Publication year - 2017
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201701167
Subject(s) - electrocatalyst , tafel equation , materials science , cobalt , phosphide , oxygen evolution , bifunctional , doping , electrochemistry , chemical engineering , inorganic chemistry , catalysis , metal , chemistry , metallurgy , electrode , optoelectronics , organic chemistry , engineering
Iron (Fe)‐doped porous cobalt phosphide polyhedrons are designed and synthesized as an efficient bifunctional electrocatalyst for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The synthesis strategy involves one‐step route for doping foreign metallic element and forming porous cobalt phosphide polyhedrons. With varying doping levels of Fe, the optimized Fe‐doped porous cobalt phosphide polyhedron exhibits significantly enhanced HER and OER performances, including low onset overpotentials, large current densities, as well as small Tafel slopes and good electrochemical stability during HER and OER.