Journal
MATERIALS LETTERS
Volume 297, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2021.129945
Keywords
Metals and alloys; Energy storage and conversion; Hydrogen storage alloy; V-based solid solution; Thermodynamics and kinetics of processes in materials
Funding
- Jilin Scientific and Technological Development Program [20200401039GX]
- Scientific and Technological Key Development Program of Jiangxi Province [20201BBE51014]
- State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization [2021H2270]
- Youth Innovation Promotion Association CAS [2021225]
- Special Fund of Industrial Innovation of Jilin Province [2019C0585]
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By investigating Y substitution in Ti-V-Mn alloy, the reversible hydrogen storage capacity above atmospheric pressure was enhanced. The emergence of Y phase and C14 Laves phase played a crucial role in improving the hydrogen storage capacity.
In an attempt to enhance reversible hydrogen storage capacity above atmospheric pressure of V-based solid solution hydrogen storage alloy, the Y substitution was investigated based on Ti-V-Mn alloy with body-centered cubic structure. Ti-V-Mn-Y alloys were prepared by non-consumable arc-melting method and Ti0.9V1.1Mn0.9Y0.1 alloy could absorb 3.54 wt% at 298 K within 3 min and reach effective hydrogen capacity of 3.05 wt% cutting-off at 1 bar pressure. The emergence of Y phase and C14 Laves phase was considered to play a crucial role for the improvement of effectively reversible hydrogen storage capacity. The thermodynamic parameters also displayed a significant variation with Y content increased. (c) 2021 Elsevier B.V. All rights reserved.
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