首页|Superior cycle life of TiZrFeMnCrV high entropy alloy for hydrogen storage

Superior cycle life of TiZrFeMnCrV high entropy alloy for hydrogen storage

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? 2022 Acta Materialia Inc.High entropy alloys (HEAs), as a promising metallic material, are comprised of five or more elements in equal or close to equal atomic fractions, which is received more and more attention due to its multi-principal-element effects. Moreover, solid solution phase and severe lattice distortion characteristics of HEAs are particularly beneficial to hydrogen storage. In this study, a new hexanary HEA TiZrFeMnCrV with single C14 Laves phase was prepared by arc melting and mechanical milling. The TiZrFeMnCrV alloy has super-fast hydrogen absorption kinetics and can absorb hydrogen 1.80 wt.% under mild conditions of 30 °C. The TiZrFeMnCrV alloy has excellent absorption/desorption cycling performance, and the capacity still stabilizes at around 1.76 wt.% during the 50 cycles. The design of high entropy alloy can provide guidance for the new type of hydrogen storage materials.

Ball millingHigh entropy alloysHydridesHydrogen storageLaves phase

Chen J.、Wang Y.、Huang H.、Lv Y.、Wu Y.、Yuan J.、Li Z.、Liu B.、Li Y.

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Jiangsu Provincial Key Laboratory of Special Robot Technology Hohai University

Advanced Technology & Materials Co. Ltd. Jiangsu JITRI Advanced Energy & Materials Research Institute Co. Ltd. Central Iron & Steel Research Institute

Advanced Materials Research Institute North China Electric Power University

School of Materials Science and Engineering Anhui University of Technology

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2022

Scripta materialia

Scripta materialia

EISCI
ISSN:1359-6462
年,卷(期):2022.212
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