Structure and hydrogen storage properties of mechanically alloyed Ti-V alloys. Balcerzak, M. International Journal of Hydrogen Energy, 42(37):23698–23707, September, 2017.
Paper doi abstract bibtex Ti-V alloys are potential candidates for hydrogen storage materials. In this study, mechanical alloying under an argon atmosphere was used to produce Ti2−xVx nanocrystalline alloys (x = 0.5, 0.75, 1, 1.25, 1.5). Shaker type ball mill was used. An objective of the present study was to investigate an influence of chemical composition and method of production on hydrogenation and dehydrogenation properties of Ti-V alloys. X-ray diffraction analyses revealed formation of BCC solid solution after 14 h of milling. It is the first time of obtaining this phase directly from mechanical alloying method. HRTEM images confirmed formation of nanocrystalline materials. Synthesized materials were studied by a conventional Sievert's type apparatus at 303 K. It was observed that the maximum hydrogen storage capacity is increased with increased Ti content in the alloy. Ti1.5V0.5 alloy showed high hydrogen storage capacity at room temperature, which reached about 3.67 wt.%. Simultaneously, it was noticed that Ti-rich alloys form more stable hydride phases than V-rich alloys. Observed properties resulted mainly from structure of studied materials.
@article{balcerzak_structure_2017,
series = {Special {Issue} on {The} 1st {International} {Conference} on {Advanced} {Energy} {Materials} ({AEM2016}), 12-14 {September} 2016, {Surrey}, {England}},
title = {Structure and hydrogen storage properties of mechanically alloyed {Ti}-{V} alloys},
volume = {42},
issn = {0360-3199},
url = {http://www.sciencedirect.com/science/article/pii/S0360319917312752},
doi = {10.1016/j.ijhydene.2017.03.224},
abstract = {Ti-V alloys are potential candidates for hydrogen storage materials. In this study, mechanical alloying under an argon atmosphere was used to produce Ti2−xVx nanocrystalline alloys (x = 0.5, 0.75, 1, 1.25, 1.5). Shaker type ball mill was used. An objective of the present study was to investigate an influence of chemical composition and method of production on hydrogenation and dehydrogenation properties of Ti-V alloys. X-ray diffraction analyses revealed formation of BCC solid solution after 14 h of milling. It is the first time of obtaining this phase directly from mechanical alloying method. HRTEM images confirmed formation of nanocrystalline materials. Synthesized materials were studied by a conventional Sievert's type apparatus at 303 K. It was observed that the maximum hydrogen storage capacity is increased with increased Ti content in the alloy. Ti1.5V0.5 alloy showed high hydrogen storage capacity at room temperature, which reached about 3.67 wt.\%. Simultaneously, it was noticed that Ti-rich alloys form more stable hydride phases than V-rich alloys. Observed properties resulted mainly from structure of studied materials.},
number = {37},
urldate = {2018-03-09},
journal = {International Journal of Hydrogen Energy},
author = {Balcerzak, M.},
month = sep,
year = {2017},
keywords = {DSC, Mechanical alloying, Metal hydrides, Thermodynamic properties, Ti-V alloys, X-ray diffraction},
pages = {23698--23707},
}
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