A New Preparation Method for Amorphous Co-B Alloys Nanoparticles

Guo Qing Zhong; Qin Zhong; Hong Liang Zhou; Yu Qing Jia

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

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 236-238A New Preparation Method for Amorphous Co-B Alloys...

A New Preparation Method for Amorphous Co-B Alloys Nanoparticles

Abstract:

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 Co_1.36B. 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.

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Advanced Materials Research (Volumes 236-238)

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1717-1720

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.236-238.1717

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Online since:

May 2011

Authors:

Guo Qing Zhong, Qin Zhong, Hong Liang Zhou, Yu Qing Jia

Keywords:

Amorphous Co-B Alloy, Electron Microscopy, Nanomaterial, Room Temperature Solid-Solid Reaction

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