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Crystalline–amorphous Co@CoO core–shell heterostructures for efficient electro-oxidation of hydrazine

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Abstract

Metal–metal oxide core–shell heterostructures have exhibited outstanding performances in many realms, especially in catalysis, due to enriched phase interfaces and strong metal/metal oxide interactions. Herein, Co@CoO core–shell heterostructures with a crystalline Co core and an amorphous CoO shell have been prepared using a simple solution reduction process and shown to be effective catalysts for the electro-oxidation of hydrazine in alkaline media. The synergistic effect between the crystalline metallic Co core and the amorphous CoO shell leads to a small onset potential of −1.10 V vs. Ag/AgCl. In addition, the Co@CoO electrode has been shown to exhibit good long-term catalytic stability.

Graphical abstract: Crystalline–amorphous Co@CoO core–shell heterostructures for efficient electro-oxidation of hydrazine

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Publication details

The article was received on 01 Sep 2017, accepted on 27 Oct 2017 and first published on 31 Oct 2017


Article type: Research Article
DOI: 10.1039/C7QM00401J
Citation: Mater. Chem. Front., 2018, Advance Article
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    Crystalline–amorphous Co@CoO core–shell heterostructures for efficient electro-oxidation of hydrazine

    X. Yan, Y. Liu, J. Lan, Y. Yu, J. Murowchick, X. Yang and Z. Peng, Mater. Chem. Front., 2018, Advance Article , DOI: 10.1039/C7QM00401J

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