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Issue 20, 2017
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Colloidal synthesis of urchin-like Fe doped NiSe2 for efficient oxygen evolution

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Abstract

The search for highly efficient non-precious metal electrocatalysts toward the oxygen evolution reaction (OER) is extremely essential for renewable energy systems. Here, we report the colloidal synthesis of Fe doped NiSe2, which functions as a high-performance electrocatalyst for the OER in alkaline solution. The NiFeSe catalysts are composed of urchin-like dendrites with a high number of active sites, which could provide fast transportation of electrons and electrolytes, and facile release of the evolved O2 bubbles during the OER catalysis. Benefitting from this unique urchin-like structure and strong electron interaction between Fe, Ni, and Se, the Ni1.12Fe0.49Se2 catalyst exhibits excellent electrocatalytic activity and high durability toward the OER in alkaline solution, with an overpotential of 227 mV at a current density of 10 mA cm−2, which is, to the best of our knowledge, higher than most of the reported selenide-based electrocatalysts.

Graphical abstract: Colloidal synthesis of urchin-like Fe doped NiSe2 for efficient oxygen evolution

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Publication details

The article was received on 26 Feb 2017, accepted on 15 Apr 2017 and first published on 19 Apr 2017


Article type: Paper
DOI: 10.1039/C7NR01413A
Citation: Nanoscale, 2017,9, 6821-6825
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    Colloidal synthesis of urchin-like Fe doped NiSe2 for efficient oxygen evolution

    Y. Du, G. Cheng and W. Luo, Nanoscale, 2017, 9, 6821
    DOI: 10.1039/C7NR01413A

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