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Issue 4, 2018
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Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction

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Abstract

Structure and phase modulations allow the development of highly active, cost-effective and stable electrocatalysts for the hydrogen evolution reaction (HER) but are rather challenging. In this paper, Zn–Co–S hollow/porous polyhedra with controllable phases were fabricated via solvent-based sulfidation at room temperature followed by thermal annealing. The obtained hollow structure Zn–Co–S-300 with an amorphous phase exhibits excellent electrocatalytic HER activity, which is higher than crystalline Zn–Co sulfides annealed at a higher temperature. Zn–Co–S-300 also shows a long-term working stability (91.7% current density retention over 10 hours) in alkaline media. This work provides a feasible approach for the fabrication of homogeneous ternary transition metal sulfide (TMS) electrocatalysts via the Kirkendall effect towards high-efficiency HER applications.

Graphical abstract: Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction

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Publication details

The article was received on 31 Oct 2017, accepted on 13 Dec 2017 and first published on 14 Dec 2017


Article type: Paper
DOI: 10.1039/C7NR08097B
Citation: Nanoscale, 2018,10, 1774-1778
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    Phase controllable fabrication of zinc cobalt sulfide hollow polyhedra as high-performance electrocatalysts for the hydrogen evolution reaction

    B. Zhang, G. Yang, C. Li, K. Huang, J. Wu, S. Hao, J. Feng, D. Peng and Y. Huang, Nanoscale, 2018, 10, 1774
    DOI: 10.1039/C7NR08097B

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