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Issue 35, 2017
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A highly efficient electrocatalyst based on amorphous Pd–Cu–S material for hydrogen evolution reaction

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Abstract

Hydrogen evolution reactions (HER) through water splitting draws tremendous attention as a way for generating clean energy. In this process, developing cost-effective, efficient non-Pt electrocatalysts is highly important for HER practical applications. 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 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 a Tafel slope of only 35 mV dec−1, which is close to commercial Pt-based catalysts. 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 water splitting.

Graphical abstract: A highly efficient electrocatalyst based on amorphous Pd–Cu–S material for hydrogen evolution reaction

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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, 2017,5, 18793-18800
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    A highly efficient electrocatalyst based on amorphous Pd–Cu–S material for hydrogen evolution reaction

    W. Xu, S. Zhu, Y. Liang, Z. Cui, X. Yang, A. Inoue and H. Wang, J. Mater. Chem. A, 2017, 5, 18793
    DOI: 10.1039/C7TA05314B

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