Bimetallic (FexNi1-x)2P nanoarrays as exceptionally efficient electrocatalysts for oxygen evolution in alkaline and neutral media

被引：220

作者：

Zhang, Bowei ^{[1
]}

Lui, Yu Hui ^{[1
]}

Ni, Hongwei ^{[2
]}

Hu, Shan ^{[1
]}

机构：

[1] Iowa State Univ, Dept Mech Engn, Ames, IA 50011 USA

[2] Wuhan Univ Sci & Technol, State Key Lab Refractories & Met, Wuhan 430081, Peoples R China

来源：

NANO ENERGY | 2017年 / 38卷

关键词：

FeNi-P; Nanoarrays; Electrocatalysis; OER; Alkaline and neutral media; WATER OXIDATION; CATALYSTS; PHOSPHIDE; NI; FILM; NANOPARTICLES; ARRAYS;

D O I：

10.1016/j.nanoen.2017.06.032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A specific investigation has been carried out of the electronic structures, Ni oxidation properties, and electrochemical activities of (FexNi1-x)(2)P for oxygen evolution reaction (OER) in alkaline and neutral media, respectively. The optimized hierarchical Fe-Ni phosphide electrode shows exceptional OER performances under both alkaline and neutral conditions, even much superior to RuO2 catalyst. It only needs extremely low overpotentials of 156 mV and 255 mV to catalyze 10 and 500 mA/cm(2) OER current densities in 1 M KOH. Furthermore, a current density of 10 mA/cm(2) was achieved at a small overpotential of 396 mV in 0.1 M phosphate buffer.

引用

页码：553 / 560

页数：8

共 46 条

[1]

[Anonymous], 2017, ANGEW CHEM-GER EDIT, DOI DOI 10.1002/ANGE.201610776

[2]

Bao J., 2015, ANGEW CHEM, V25, P7507

[3] Mechanistic Studies of the Oxygen Evolution Reaction Mediated by a Nickel-Borate Thin Film Electrocatalyst [J].