Janus Co/CoP Nanoparticles as Efficient Mott–Schottky Electrocatalysts for Overall Water Splitting in Wide pH Range

Zhong Hua Xue; Hui Su; Qiu Ying Yu; Bing Zhang; Hong Hui Wang; Xin Hao Li; Jie Sheng Chen

doi:10.1002/aenm.201602355

Janus Co/CoP Nanoparticles as Efficient Mott–Schottky Electrocatalysts for Overall Water Splitting in Wide pH Range

Zhong Hua Xue, Hui Su, Qiu Ying Yu, Bing Zhang, Hong Hui Wang, Xin Hao Li^*, Jie Sheng Chen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

514 Scopus citations

Abstract

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.

Original language	English (US)
Journal	Advanced Energy Materials
Volume	7
Issue number	12
DOIs	https://doi.org/10.1002/aenm.201602355
State	Published - Jun 21 2017

Keywords

heterogeneous catalysis
Mott–Schottky electrocatalysts
nanostructures
phosphide
water splitting

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/aenm.201602355

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title = "Janus Co/CoP Nanoparticles as Efficient Mott–Schottky Electrocatalysts for Overall Water Splitting in Wide pH Range",

abstract = "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.",

keywords = "heterogeneous catalysis, Mott–Schottky electrocatalysts, nanostructures, phosphide, water splitting",

author = "Xue, {Zhong Hua} and Hui Su and Yu, {Qiu Ying} and Bing Zhang and Wang, {Hong Hui} and Li, {Xin Hao} and Chen, {Jie Sheng}",

note = "Funding Information: This work was supported by the National Basic Research Program of China (2013CB934102), the National Natural Science Foundation of China (21331004, 21301116), the SJTU-UM joint grant, the Shanghai Eastern Scholar Program and the Shanghai Rising-Star Program (16QA1402100). Publisher Copyright: {\textcopyright} 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2017",

month = jun,

day = "21",

doi = "10.1002/aenm.201602355",

language = "English (US)",

volume = "7",

journal = "Advanced Energy Materials",

issn = "1614-6832",

publisher = "Wiley-VCH Verlag",

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TY - JOUR

T1 - Janus Co/CoP Nanoparticles as Efficient Mott–Schottky Electrocatalysts for Overall Water Splitting in Wide pH Range

AU - Xue, Zhong Hua

AU - Su, Hui

AU - Yu, Qiu Ying

AU - Zhang, Bing

AU - Wang, Hong Hui

AU - Li, Xin Hao

AU - Chen, Jie Sheng

N1 - Funding Information: This work was supported by the National Basic Research Program of China (2013CB934102), the National Natural Science Foundation of China (21331004, 21301116), the SJTU-UM joint grant, the Shanghai Eastern Scholar Program and the Shanghai Rising-Star Program (16QA1402100). Publisher Copyright: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2017/6/21

Y1 - 2017/6/21

N2 - 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.

AB - 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.

KW - heterogeneous catalysis

KW - Mott–Schottky electrocatalysts

KW - nanostructures

KW - phosphide

KW - water splitting

UR - http://www.scopus.com/inward/record.url?scp=85013678480&partnerID=8YFLogxK

U2 - 10.1002/aenm.201602355

DO - 10.1002/aenm.201602355

M3 - Article

AN - SCOPUS:85013678480

SN - 1614-6832

VL - 7

JO - Advanced Energy Materials

JF - Advanced Energy Materials

IS - 12

ER -

Janus Co/CoP Nanoparticles as Efficient Mott–Schottky Electrocatalysts for Overall Water Splitting in Wide pH Range

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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