Exfoliation of ultrathin FePS3 layers as a promising electrocatalyst for the oxygen evolution reaction

Wen Zhu; Wei Gan; Zahir Muhammad; Changda Wang; Chuanqiang Wu; Hengjie Liu; Daobin Liu; Ke Zhang; Qun He; Hongliang Jiang; Xusheng Zheng; Zhe Sun; Shuangming Chen; Li Song

doi:10.1039/C8CC01076E

Exfoliation of ultrathin FePS₃ layers as a promising electrocatalyst for the oxygen evolution reaction†

Wen Zhu,‡^a Wei Gan,‡^b Zahir Muhammad,^a Changda Wang,^a Chuanqiang Wu,^a Hengjie Liu,^a Daobin Liu,^a Ke Zhang,^a Qun He,^a Hongliang Jiang,

^a Xusheng Zheng,^a Zhe Sun,^a Shuangming Chen*^a and Li Song

*^a

Author affiliations

* Corresponding authors

^a National Synchrotron Radiation Laboratory, CAS Center for Excellence in Nanoscience, University of Science and Technology of China, Hefei, Anhui 230029, China
E-mail: csmp@ustc.edu.cn, song2012@ustc.edu.cn

^b Institute for Frontier Materials, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC, Australia

Abstract

Few-layer ternary FePS₃ nanosheets, prepared via chemical vapor transport synthesis and ball-milling exfoliation, exhibit excellent electrocatalytic performance for the oxygen evolution reaction in an alkaline medium. Combined with first principles calculations, our X-ray spectroscopy and HRTEM results clearly reveal that the introduction of in-plane defects in FePS₃ layers after exfoliation and formation of a FePS₃–FeOOH heterostructure during the OER process largely contribute to the catalytic activity enhancement.

Chemical Communications

Exfoliation of ultrathin FePS₃ layers as a promising electrocatalyst for the oxygen evolution reaction†

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Exfoliation of ultrathin FePS₃ layers as a promising electrocatalyst for the oxygen evolution reaction

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