Co-doping Strategy for Developing Perovskite Oxides as Highly Efficient Electrocatalysts for Oxygen Evolution Reaction
Journal article published in 2015 by
Xiaomin Xu,
Chao Su,
Wei Zhou 
,
Yinlong Zhu,
Yubo Chen ,
Zongping Shao
,
Yinlong Zhu,
Yubo Chen ,
Zongping Shao
This paper is made freely available by the publisher.
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Abstract
A synergistic co-doping strategy is proposed to identify a series of BaCo0.9-xFexSn0.1O3-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 (BaCo0.7Fe0.2Sn0.1O3-δ) is stabilized, showing intrinsic OER activity >1 order of magnitude larger than IrO2 and a Tafel slope of 69 mV dec−1.