Open AccessCo‐doping Strategy for Developing Perovskite Oxides as Highly Efficient Electrocatalysts for Oxygen Evolution Reaction
Author(s) -
Xu Xiaomin,
Su Chao,
Zhou Wei,
Zhu Yinlong,
Chen Yubo,
Shao Zongping
Publication year - 2016
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201500187
Subject(s) - oxygen evolution , perovskite (structure) , doping , materials science , oxygen , chemical engineering , nanotechnology , chemistry , electrochemistry , optoelectronics , electrode , organic chemistry , engineering
A synergistic co‐doping strategy is proposed to identify a series of BaCo 0.9– x Fe x Sn 0.1 O 3–δ perovskites with tunable electrocatalytic activity for the oxygen evolution reaction (OER). Simply through tailoring the relative concentrations of less OER‐active tin and iron dopants, a cubic perovskite structure (BaCo 0.7 Fe 0.2 Sn 0.1 O 3–δ ) is stabilized, showing intrinsic OER activity >1 order of magnitude larger than IrO 2 and a Tafel slope of 69 mV dec −1 .