TITLE

The Influence of Chemical Modification by Silver on Hydrogen Storage Properties of Nanocrystalline Ti2Ni Alloy

AUTHOR(S)
BALCERZAK, M.; JURCZYK, M.
PUB. DATE
October 2014
SOURCE
Acta Physica Polonica, A.;2014, Vol. 126 Issue 4, p892
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this study mechanical alloying process with subsequent annealing at 750°C for 0.5 h were used to produce Ti2Ni-based nanocrystalline alloys and composite. To improve electrochemical properties, Ti-Ni-based alloy was chemically modified by 5 wt% of silver powder. X-ray diffraction analyses showed formation of nanocrystalline Ti2Ni main phase. Electrochemical studies revealed a positive effect of chemical modification by silver on Ti2Ni alloy. All synthesized materials were used as negative electrodes for Ni-MHx batteries. The highest discharge capacity equaled 303 mAh/g, at 40 mA/g discharge current. All electrochemical measurements were done in 6 M KOH solution.
ACCESSION #
99622114

 

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