Open AccessEfficient Electrolytic Water Splitting with FeCoPt Trimetallic Cubic Nanocatalysts
Author(s) -
Shuang Wang,
Zhiying Deng,
Jing Li,
Haiqin Liu,
Yijun Wang,
Xiaoqi Fu
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/592/1/012043
Subject(s) - overpotential , nanomaterial based catalyst , water splitting , oxygen evolution , materials science , catalysis , chemical engineering , galvanic cell , electrolyte , nanoparticle , inorganic chemistry , nanotechnology , chemistry , metallurgy , electrochemistry , electrode , biochemistry , photocatalysis , engineering
Electrocatalytic water splitting to hydrogen energy provides an environmental, cost-effective, and sustainable approach to address worldwide energy and carbon emission challenges. Here we report a facile method for preparing trimetallic cubic nanoparticles for electrolytic overall water splitting by galvanic replacement of FeCo alloys with Pt salt solution. The as-synthesized FeCoPt trimetallic nanocatalysts demonstrated excellent activity and stability for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) catalytic performance in 1.0 mol L -1 KOH. The FeCoPt-2 sample afforded a current density of 10 mA cm -2 at a low overpotential of 178 mV for HER and 305 mV for OER. The present study provides a facile and cost-effective synthetic process to prepare trimetallic FeCoPt nanocatalysts as high-performance electrocatalysts for overall water splitting.