Journal
ACS APPLIED ENERGY MATERIALS
Volume 3, Issue 1, Pages 794-799Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.9b01945
Keywords
hydrogen storage; annealing; Ti-based metal hydrides; Laves phase; heat treatment
Funding
- Queen Elizabeth II Diamond Jubilee Scholarship
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The effect of heat treatment on the first hydrogenation of body centred cubic (BCC) Ti52V12Cr36 alloy was investigated. It was found that, after a 1 week heat treatment at 1273 K, BCC phase abundance was greatly reduced by heat treatment. The crystal structure changed from BCC to a complex multiphase pattern of BCC phase, CIS-type Laves phase, and alpha-Ti. The network of the alpha-Ti phase was broader after heat treatment. The heat treatment eliminated the incubation time of the first hydrogenation and improved the kinetics, but the total hydrogen capacity was reduced by 30%.
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