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Issue 43, 2014
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Magnetic Ni and Ni/Pt hollow nanospheres and their catalytic activities for hydrolysis of ammonia borane

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Abstract

Hollow metallic nickel nanospheres have been controllably synthesized via a solvothermal reduction process. The complexation between ethylenediamine and Ni2+ might be the key factor to control the formation of the hollow structure through the reduction rate of Ni2+ at a relatively low level. The size of the hollow nanospheres could be adjusted by changing the starting ethanol/ethylenediamine volume ratio. The magnetic property study reveals that the coercivity of the as-synthesized hollow nickel nanospheres is much enhanced compared with that of bulk nickel materials. Ni/Pt hollow bimetallic nanospheres have also been synthesized by using the replacement reaction. Inspiringly, the as-synthesized Ni/Pt hollow bimetallic nanospheres exhibit higher catalytic activities for the hydrogen generation from ammonia borane hydrolysis compared with the Ni/Pt nanoparticles.

Graphical abstract: Magnetic Ni and Ni/Pt hollow nanospheres and their catalytic activities for hydrolysis of ammonia borane

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Article information


Submitted
01 Aug 2014
Accepted
15 Sep 2014
First published
15 Sep 2014

J. Mater. Chem. A, 2014,2, 18171-18176
Article type
Feature Article
Author version available

Magnetic Ni and Ni/Pt hollow nanospheres and their catalytic activities for hydrolysis of ammonia borane

W. Jiao, X. Hu, H. Ren, P. Xu, R. Yu, J. Chen and X. Xing, J. Mater. Chem. A, 2014, 2, 18171
DOI: 10.1039/C4TA03949A

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