TY - JOUR
T1 - Reversible room temperature hydrogen storage in high-entropy alloy TiZrCrMnFeNi
AU - Edalati, Parisa
AU - Floriano, Ricardo
AU - Mohammadi, Abbas
AU - Li, Yongtao
AU - Zepon, Guilherme
AU - Li, Hai Wen
AU - Edalati, Kaveh
N1 - Funding Information:
This work is supported in part by Grants-in-Aid for Scientific Research from the MEXT, Japan (Nos. 16H04539 and 19H05176), in part by a grant from the Brazilian Research Funding Agency FAPESP (Regular Project No. 2018/15968-4), and in part by a grant the Serrapilheira Institute (No. Serra-1709-17362).
Funding Information:
This work is supported in part by Grants-in-Aid for Scientific Research from the MEXT, Japan (Nos. 16H04539 and 19H05176 ), in part by a grant from the Brazilian Research Funding Agency FAPESP (Regular Project No. 2018/15968-4) , and in part by a grant the Serrapilheira Institute (No. Serra-1709-17362).
Publisher Copyright:
© 2019 Acta Materialia Inc.
PY - 2020/3/15
Y1 - 2020/3/15
N2 - Despite potential of hydride-forming alloys for hydrogen storage, there have been few alloys which can reversibly store hydrogen without heating or activation treatment. In this study, a high-entropy alloy is designed for room temperature hydrogen storage based on three criteria: total valence electron concentration (VEC) of 6.4, single-phase thermodynamic stability (examined by CALPHAD calculations) and AB2H3 hydride formation (A: hydride-forming elements, B: elements without affinity to hydrogen, H: hydrogen). The designated alloy, TiZrCrMnFeNi containing 95 wt% C14 Laves phase, absorbs and desorbs 1.7 wt% of hydrogen (hydrogen-to-metal ratio: 1) at room temperature with a fast kinetics and without activation treatment.
AB - Despite potential of hydride-forming alloys for hydrogen storage, there have been few alloys which can reversibly store hydrogen without heating or activation treatment. In this study, a high-entropy alloy is designed for room temperature hydrogen storage based on three criteria: total valence electron concentration (VEC) of 6.4, single-phase thermodynamic stability (examined by CALPHAD calculations) and AB2H3 hydride formation (A: hydride-forming elements, B: elements without affinity to hydrogen, H: hydrogen). The designated alloy, TiZrCrMnFeNi containing 95 wt% C14 Laves phase, absorbs and desorbs 1.7 wt% of hydrogen (hydrogen-to-metal ratio: 1) at room temperature with a fast kinetics and without activation treatment.
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U2 - 10.1016/j.scriptamat.2019.12.009
DO - 10.1016/j.scriptamat.2019.12.009
M3 - Article
AN - SCOPUS:85076358873
SN - 1359-6462
VL - 178
SP - 387
EP - 390
JO - Scripta Materialia
JF - Scripta Materialia
ER -