Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 580, Issue -, Pages S233-S237Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2013.03.208
Keywords
Hydrogen storage materials; Ti-V based alloys; X-ray diffraction; Microstructure; Hydrogen absorption-desorption
Categories
Funding
- EPSRC SUPERGEN UK-SHEC [EP/E040071/1]
- EPSRC SCRATCH [EP/E034888/1]
- AWM Birmingham Science City Hydrogen Energy projects
- Engineering and Physical Sciences Research Council [EP/K021117/1] Funding Source: researchfish
- EPSRC [EP/K021117/1] Funding Source: UKRI
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Two Ti-V-Mn BCC-Laves phase alloys with the nominal composition Ti0.5V0.5 +/- xMn (x = -0.04 and 0.01), were synthesised by arc melting. This compositional difference resulted in different compositions and unit cell volumes for the C14 Laves phase. Ti0.47V0.46Mn and Ti0.50V0.51Mn demonstrated reversible hydrogen sorption capacities of 1.53 and 1.56 +/- 0.05 wt.% (at 120 bar H-2 at 303 K) respectively, however, the change in composition results in a small change in the enthalpy of hydride decomposition, and a significant change in plateau pressure and hysteresis. This may allow for the plateau pressure to be tuned to meet the requirements of different solid-state hydrogen storage applications. (C) 2013 Elsevier B.V. All rights reserved.
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