Premium
One‐Step Preparation of Cobalt‐Nanoparticle‐Embedded Carbon for Effective Water Oxidation Electrocatalysis
Author(s) -
Wu Qian,
Li Jian,
Wu Tongwei,
Ji Lei,
Zhang Rong,
Jiang Pengfei,
Chen Hongyu,
Zhao Runbo,
Asiri Abdullah M.,
Sun Xuping
Publication year - 2019
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.201900094
Subject(s) - overpotential , electrocatalyst , oxygen evolution , catalysis , cobalt , nanoparticle , water splitting , electrochemistry , chemical engineering , materials science , carbon fibers , nanotechnology , chemistry , inorganic chemistry , electrode , organic chemistry , photocatalysis , composite material , composite number , engineering
The sluggish kinetics of the oxygen evolution reaction (OER) impedes the whole water splitting efficiency and it is thus highly desirable to develop cost‐effective OER electrocatalysts. In this Communication, we report the one‐step preparation of cobalt‐nanoparticle‐embedded carbon as a superior OER electrocatalyst with a low overpotential of 232 mV to drive a current density of 10 mA cm −2 in 1.0 M KOH. Notably, this catalyst also exhibits excellent long‐term electrochemical stability. The catalytic mechanism is also investigated by density functional theory calculations.