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Amorphous Alloy Ni-Fe-B: Preparation, Characterization and its Catalytic Ability for Hydrogen Generation

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Abstract:

Several amorphous alloys (Ni-Fe-B) were synthesized using liquid phase reduction method. The influences of molar ratios n(Fe)/n(Fe+Ni) and different temperatures on phase composition, morphology and catalytic activity were investigated. The resulting products were characterized by XRD and TEM methods, and the catalytic activities were also evaluated by way of hydrogen release ability of NaBH4 hydrolysis. The results show that the products have stable amorphous phase structures. With the increase of n(Fe)/n(Fe+Ni), the crystallizing tendency rises and the agglomeration strengthens. Under the conditions (T=333K, n(Fe)/n(Fe+Ni)=0.5), the as-prepared samples exhibit the highest catalytic activity, and the highest hydrogen generation rate is 1.70 mL/min-1.

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Periodical:

Applied Mechanics and Materials (Volumes 672-674)

Pages:

592-596

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.672-674.592

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Online since:

October 2014

Authors:

Jun Zhang*, Hai Rui Yao, Hua Bo Li, Xiao Kang Bai, Jing Jing Li

Keywords:

Amorphous Alloy, Catalytic Activity, Hydrogen Generation, Ni-Fe-B

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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