A Perovskite Electrocatalyst for Efficient Hydrogen Evolution Reaction

Xiaomin Xu; Yubo Chen; Wei Zhou; Zhonghua Zhu; Chao Su; Meilin Liu; Zongping Shao

doi:10.1002/adma.201600005

A Perovskite Electrocatalyst for Efficient Hydrogen Evolution Reaction

Adv Mater. 2016 Aug;28(30):6442-8. doi: 10.1002/adma.201600005. Epub 2016 May 17.

Authors

Xiaomin Xu¹, Yubo Chen¹, Wei Zhou¹, Zhonghua Zhu², Chao Su³, Meilin Liu⁴, Zongping Shao^{3

5}

Affiliations

¹ State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), No. 5 Xin Mofan Road, Nanjing, 210009, P.R. China.
² School of Chemical Engineering, The University of Queensland, St. Lucia, Queensland, 4072, Australia.
³ Department of Chemical Engineering, Curtin University, Perth, Western Australia, 6845, Australia.
⁴ Center for Innovative Fuel Cell and Battery Technologies, School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA.
⁵ State Key Laboratory of Materials-Oriented Chemical Engineering, College of Energy, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), No. 5 Xin Mofan Road, Nanjing, 210009, P.R. China.

PMID: 27185219
DOI: 10.1002/adma.201600005

Abstract

Perovskite oxides are demonstrated for the first time as efficient electrocatalysts for the hydrogen evolution reaction (HER) in alkaline solutions. A-site praseodymium-doped Pr0.5 (Ba0.5 Sr0.5 )0.5 Co0.8 Fe0.2 O3- δ (Pr0.5BSCF) exhibits dramatically enhanced HER activity and stability compared to Ba0.5 Sr0.5 Co0.8 Fe0.2 O3- δ (BSCF), superior to many well-developed bulk/nanosized nonprecious electrocatalysts. The improved HER performance originates from the modified surface electronic structures and properties of Pr0.5BSCF induced by the Pr-doping.

Keywords: doping; electrocatalysis; hydrogen evolution reaction; perovskites; water splitting.