Issue 7, 2016

Surface cavities of Ni(OH)2 nanowires can host Au nanoparticles as supported catalysts with high catalytic activity and stability

Abstract

We present a proof-of-concept demonstration of surface cavities for incorporation of noble metal nanoparticles with remarkable catalytic performance involved in liquid phase catalytic reactions. Mesoporous Ni(OH)2 (m-Ni(OH)2) nanowires with surface cavities have been chosen as multifunctional supports for Au nanoparticles with a well controlled size (2 nm) and high dispersity through a facile room-temperature in situ reduction process without any additional stabilizer. In addition to immobilizing Au nanoparticles, the cavities also can prevent aggregation of neighboring noble metal nanoparticles, thus ensuring high stability/recyclability for Au/m-Ni(OH)2 supported nanocatalysts. The results from catalytic reactions involved in the reduction of 4-nitrophenol in the presence of NaBH4 using Au/m-Ni(OH)2 as the catalyst demonstrated its remarkable catalytic performance due to its nanoscale configuration.

Graphical abstract: Surface cavities of Ni(OH)2 nanowires can host Au nanoparticles as supported catalysts with high catalytic activity and stability

Supplementary files

Article information

Article type
Paper
Submitted
15 Dec 2015
Accepted
12 Jan 2016
First published
14 Jan 2016

J. Mater. Chem. A, 2016,4, 2590-2596

Surface cavities of Ni(OH)2 nanowires can host Au nanoparticles as supported catalysts with high catalytic activity and stability

N. Han, S. Cao, J. Han, Y. Hu, X. Zhang and R. Guo, J. Mater. Chem. A, 2016, 4, 2590 DOI: 10.1039/C5TA10258H

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