A New Preparation Method for Amorphous Co-B Alloys Nanoparticles

Abstract:

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The Co–B alloy can be prepared facilely by a solid-solid reaction of CoCl2•6H2O and KBH4 powders at room temperature. Various characterizations, such as the chemical analysis, inductively coupled plasma-atomic emission spectroscopy (ICP), powder X-ray diffraction, electron diffraction and TEM have been performed. The results indicate that the Co-B alloy obtained by the solid-solid reaction is amorphous nanoparticles. The composition of the alloy is Co1.36B. The average diameter of the Co–B alloy nanoparticles is 30nm–50nm. The room temperature solid-solid reaction is mainly a surface reaction. The direct solid solid reaction between the borohydride and some metal-salts is thermodynamically possible. This simple preparation method may also be used for the large-scale production of the amorphous nanoparticles of some metal-boron alloys.

Info:

Periodical:

Advanced Materials Research (Volumes 236-238)

Edited by:

Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao

Pages:

1717-1720

DOI:

10.4028/www.scientific.net/AMR.236-238.1717

Citation:

G. Q. Zhong et al., "A New Preparation Method for Amorphous Co-B Alloys Nanoparticles", Advanced Materials Research, Vols. 236-238, pp. 1717-1720, 2011

Online since:

May 2011

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Price:

$35.00

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