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Issue 16, 2017
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Gas-templating of hierarchically structured Ni–Co–P for efficient electrocatalytic hydrogen evolution

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Abstract

One of the grand challenges for developing scalable and sustainable hydrogen producing systems is the lack of efficient and robust earth-abundant element based catalysts for the hydrogen evolution reaction (HER). Herein, a hierarchically structured Ni–Co–P film was fabricated via a gas templating electro-deposition method. This film exhibits remarkably high catalytic performance for the HER in 1 M KOH with respective current densities of −10 and −500 mA cm−2 at the overpotentials of −30 and −185 mV with a Tafel slope of 41 mV dec−1. A controlled potential electrolysis experiment demonstrates that the as-prepared Ni–Co–P film is an efficient and robust catalyst with a faradaic efficiency close to 100%. Systematic characterization suggests that the unique hierarchical structure and the mutual participation of nano-sized Ni/Co based components are responsible for the high HER catalytic activity.

Graphical abstract: Gas-templating of hierarchically structured Ni–Co–P for efficient electrocatalytic hydrogen evolution

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Publication details

The article was received on 24 Feb 2017, accepted on 25 Mar 2017 and first published on 25 Mar 2017


Article type: Paper
DOI: 10.1039/C7TA01716B
Citation: J. Mater. Chem. A, 2017,5, 7564-7570
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    Gas-templating of hierarchically structured Ni–Co–P for efficient electrocatalytic hydrogen evolution

    P. Zhang, H. Chen, M. Wang, Y. Yang, J. Jiang, B. Zhang, L. Duan, Q. Daniel, F. Li and L. Sun, J. Mater. Chem. A, 2017, 5, 7564
    DOI: 10.1039/C7TA01716B

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