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A Highly Efficient Electrocatalyst Based on Amorphous Pd-Cu-S Material for Hydrogen Evolution Reaction

Abstract

Hydrogen evolution reaction (HER) through water splitting draws tremendous attentions as a way for generation of clean energy. In this process, development of cost-effective, efficient non-Pt electrocatalysts is of high importance for HER in practical application. In this work, we demonstrate a highly efficient and stable electrocatalyst based on amorphous Pd-Cu-S material. We found that the existence of abundant bridging S22- and apical S2- species and the charge redistribution between Pd and Cu atoms in the material provided significantly enhanced electrocatalytic activity for HER, leading to a small overpotential of 58 mV at 10 mA cm-2 and Tafel slope of only 35 mV dec-1 in HER, which is close to commercial Pt based catalyst. Furthermore, the material demonstrated excellent electrochemical durability with no performance decrease in HER for 48 h even in 7 M H2SO4 solution, indicating its great potential as a non-Pt catalyst for HER of water splitting.

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Publication details

The article was received on 19 Jun 2017, accepted on 11 Aug 2017 and first published on 12 Aug 2017


Article type: Paper
DOI: 10.1039/C7TA05314B
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    A Highly Efficient Electrocatalyst Based on Amorphous Pd-Cu-S Material for Hydrogen Evolution Reaction

    W. Xu, S. Zhu, Y.Q. Liang, Z.D. Cui, X.J. Yang, A. Inoue and H. Wang, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA05314B

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