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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Reversible room temperature hydrogen storage in high-entropy alloy TiZrCrMnFeNi

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Author(s):
Edalati, Parisa [1] ; Floriano, Ricardo [2] ; Mohammadi, Abbas [1] ; Li, Yongtao [3, 4] ; Zepon, Guilherme [5] ; Li, Hai-Wen [1, 4, 6] ; Edalati, Kaveh [1]
Total Authors: 7
Affiliation:
[1] Kyushu Univ, WPI I2CNER, Fukuoka 8190395 - Japan
[2] Univ Estadual Campinas, Fac Ciencias Aplicadas, Rua Pedro Zaccaria 1300, BR-13484350 Limeira - Brazil
[3] Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002 - Peoples R China
[4] Kyushu Univ, Int Res Ctr Hydrogen Energy, Fukuoka 8190395 - Japan
[5] Univ Fed Sao Carlos, Dept Mat Engn, Rod Washington Luis Km 235, BR-13565905 Sao Carlos, SP - Brazil
[6] Kyushu Univ, Platform Inter Transdisciplinary Energy Res Q PIT, Fukuoka 8190395 - Japan
Total Affiliations: 6
Document type: Journal article
Source: SCRIPTA MATERIALIA; v. 178, p. 387-390, MAR 2020.
Web of Science Citations: 0
Abstract

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 AB(2)H(3) 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. (C) 2019 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 18/15968-4 - Synthesis and Characterization of High Entropy Alloys based on TiFe System
Grantee:Ricardo Floriano
Support Opportunities: Regular Research Grants