Issue 45, 2014

Hollow Ni–Co–B amorphous alloy nanospheres: facile fabrication via vesicle-assisted chemical reduction and their enhanced catalytic performances

Abstract

In this paper, we develop a simple vesicle-assisted chemical reduction approach for synthesizing hollow Ni–Co–B nanospheres. With various characterization techniques, the resulting Ni–Co–B nanospheres are identified as amorphous alloys with a hollow chamber. Coexistence of NiII and CoII species plays a significant role in fabricating hollow nanospheric structures, because only solid nanoparticles can be obtained in the presence of a mono-metallic precursor. During liquid-phase hydrogenation of 2-ethyl-2-hexenaldehyde, hollow Ni–Co–B catalyst displays significant bi-site catalysis from bimetals and delivers much greater activity as well as better selectivity than associated with the dense Ni–Co–B catalyst. Additionally, this catalyst is also easily handled in liquid-phase reactions due to its lower density and magnetic property. The material design concept presented in this work opens a new avenue for the development of hollow non-noble metallic nanospheres and will draw more attention in the foreseeable future.

Graphical abstract: Hollow Ni–Co–B amorphous alloy nanospheres: facile fabrication via vesicle-assisted chemical reduction and their enhanced catalytic performances

Supplementary files

Article information

Article type
Paper
Submitted
01 9 2014
Accepted
29 9 2014
First published
29 9 2014

J. Mater. Chem. A, 2014,2, 19253-19259

Hollow Ni–Co–B amorphous alloy nanospheres: facile fabrication via vesicle-assisted chemical reduction and their enhanced catalytic performances

W. Wei, Y. Zhao, S. C. Peng, H. Y. Zhang, Y. P. Bian, H. X. Li and H. Li, J. Mater. Chem. A, 2014, 2, 19253 DOI: 10.1039/C4TA04533E

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