A. Ioannidou, S. S. Makridis, M. Gjoka, E. I. Gkanas, A. K. Stubos, N. Lupu, D. Niarchos
The hydrogen sorption performance of V55Ti21Cr17Fe7 and V55Ti21Mn17Fe7 alloys and their ribbons were evaluated by pressure composition temperature tests. Their hydrogen absorption kinetic properties were studied through hydrogen absorption curves. The crystallographic structures and microstructure of these alloys and ribbons before hydrogen absorption and after hydrogen desorption PCT tests were identified by Xray diffraction and Scanning electron microscopy analysis, respectively. Hydrogen storage characteristics of such materials were investigated by volumetric method using Sieverts type apparatus and gravimetric method with suspension balance.
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http://arxiv.org/abs/1303.5112
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