Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1287626 | Journal of Power Sources | 2006 | 5 Pages |
Abstract
Mg2Ni-type alloys, i.e., Mg2Ni, Mg2Ni0.75Cu0.25, Mg2Ni0.6Cu0.4 and Mg2Ni0.75V0.25 were synthesized by mechanical alloying and subsequent thermal treatment starting from a corresponding elemental powder mixture. The kinetics of hydrogen absorption and desorption of annealed materials were measured using a manually controlled Sieverts apparatus. The electrochemical characteristics of Mg2Ni-type alloys were tested for their ability to store hydrogen at room temperature by using constant current to charge and discharge the electrode. The partial substitutions of Cu and V for Ni increased hydrogen absorption and desorption at 200 °C and improved the electrochemical storage capacity and cycle life at room temperature.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
M.V. Simičić, M. Zdujić, R. Dimitrijević, Lj. Nikolić-Bujanović, N.H. Popović,