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Highly dispersed nickel nitride nanoparticles on nickel nanosheets as an active catalyst for hydrazine electrooxidation

Abstract

Synthesis of high-performance and low-cost anode electrocatalysts is a central issue in the development of direct hydrazine fuel cell as a viable energy conversion technology. Herein, we report a careful study of nickel nitride as promising catalyst towards electrooxidation of hydrazine. A hierarchically nanostructured catalyst consisting of tiny Ni3N nanoparticles dispersed on Ni nanosheets is synthesized using a hydrothermal method followed by nitridation treatment. Thus-prepared catalyst exhibits an impressively high activity, good durability and a nearly 100% selectivity towards hydrazine electrooxidation following the 4-electron-pathway, which compares favorably with most DHFC anode catalysts reported to date. Density functional theory calculations were conducted to further understand the outstanding performance of nickel nitride towards hydrazine electrooxidation.

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Publication details

The article was received on 07 Oct 2019, accepted on 26 Nov 2019 and first published on 28 Nov 2019


Article type: Paper
DOI: 10.1039/C9TA11023B
J. Mater. Chem. A, 2019, Accepted Manuscript

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    Highly dispersed nickel nitride nanoparticles on nickel nanosheets as an active catalyst for hydrazine electrooxidation

    X. Lin, H. Wen, D. Zhang, G. Cao and P. Wang, J. Mater. Chem. A, 2019, Accepted Manuscript , DOI: 10.1039/C9TA11023B

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