Electrochemical and FTIR studies of mechanically alloyed Mg2Ni

Basirun, Wan Jefrey (2011) Electrochemical and FTIR studies of mechanically alloyed Mg2Ni. Materials Research Innovations, 15. pp. 75-77. ISSN 1432-8917, DOI https://doi.org/10.1179/143307511x13031890747930.

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Mechanically alloyed Mg2Ni powders are prepared by a ball milling process and show the presence of small amounts of Ni, Mg, Ni(OH)(2) and Mg(OH)(2) from the X-ray diffraction. Voltammetry of the Mg2Ni powders is performed in 6M potassium hydroxide, and the hydrogen absorbing ability and surface oxidation of the alloy can be clearly seen. Voltammetry confirms the presence of a passivation film, which later breaks down at more positive potentials. Fourier transform infrared spectroscopy shows the formation of the passive film as Mg(OH)(2) after potential steps in the KOH solution.

Item Type: Article
Additional Information: Department of Chemistry, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Mechanically alloying; Ball mill; MG2NI; Hydrogen storage alloys; Nickel; Electrodes; Behavior; Spectroscopy; Degradation; Batteries; Impedance
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Depositing User: Miss Malisa Diana
Date Deposited: 30 Jul 2013 00:32
Last Modified: 31 Jan 2019 08:11
URI: http://eprints.um.edu.my/id/eprint/7550

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