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Issue 8, 2019
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Ni nanoparticles supported on graphitic carbon nitride as visible light catalysts for hydrolytic dehydrogenation of ammonia borane

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Abstract

The development of a robust and low-cost non-noble metal catalyst for photocatalytic H2 evolution is of great importance for practical applications. In this study, monodisperse Ni nanoparticles of controlled sizes were prepared by a facile method and anchored on graphitic carbon nitride (g-C3N4) nanosheets via a self-assembly route. The noble-metal-free Ni/g-C3N4 composite catalysts exhibit excellent photocatalytic activities for the hydrolytic dehydrogenation of ammonia borane (AB) under visible light. An optimum AB hydrolysis rate was obtained when the size of the Ni NPs was 3.2 nm, with an initial turnover frequency of 18.7 mol(hydrogen) mol(catalyst)−1 min−1 and an apparent activation energy of 36 kJ mol−1. This study provides validity for constructing high performance first-row transition metal nano-photocatalysts for the hydrolytic dehydrogenation of AB.

Graphical abstract: Ni nanoparticles supported on graphitic carbon nitride as visible light catalysts for hydrolytic dehydrogenation of ammonia borane

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Article information


Submitted
08 Nov 2018
Accepted
26 Jan 2019
First published
28 Jan 2019

Nanoscale, 2019,11, 3506-3513
Article type
Communication

Ni nanoparticles supported on graphitic carbon nitride as visible light catalysts for hydrolytic dehydrogenation of ammonia borane

M. Gao, Y. Yu, W. Yang, J. Li, S. Xu, M. Feng and H. Li, Nanoscale, 2019, 11, 3506
DOI: 10.1039/C8NR09005J

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