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Janus Co/CoP Nanoparticles as Efficient Mott–Schottky Electrocatalysts for Overall Water Splitting in Wide pH Range
Author(s) -
Xue ZhongHua,
Su Hui,
Yu QiuYing,
Zhang Bing,
Wang HongHui,
Li XinHao,
Chen JieSheng
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201602355
Subject(s) - materials science , bifunctional , electrolyte , janus , nanoparticle , water splitting , reversible hydrogen electrode , oxygen evolution , catalysis , chemical engineering , electrode , schottky diode , nanotechnology , inorganic chemistry , electrochemistry , optoelectronics , chemistry , working electrode , biochemistry , photocatalysis , engineering , diode
A controllable vacuum‐diffusion method for gradual phosphidation of carbon coated metallic Co nanoparticles into Co/CoP Janus nanoparticles is reported. Janus Co/CoP nanoparticles, as typical Mott–Schottky electrocatalysts, exhibit excellent hydrogen evolution reaction and oxygen evolution reaction performance in various electrolytes across wide pH range along with high durability. The Mott–Schottky Co/CoP catalyst can work as bifunctional electrode materials for overall water splitting in wide pH range and can achieve a current density of 10 mA cm −2 in neutral electrolyte at only 1.51 V.