Amorphous alloys for hydrogen storage

Amorphous alloys for hydrogen storage

作者:Huang, L (Huang, L. J.) [1] ; Lin, H (Lin, H. J.) [2] ; Wang, H (Wang, H.) [1] ; Ouyang, L (Ouyang, L. Z.) [1] ; Zhu, M (Zhu, M.) [1]

卷941

文献号168945

DOI10.1016/j.jallcom.2023.168945

出版时间APR 25 2023

在线发表JAN 2023

已索引2023-02-22

文献类型Article

摘要

Metal hydrides are promising materials for solid-state hydrogen storage, however, their gravimetric hy-drogen storage density is generally low. In addition, they may also exhibit poor activity, sluggish de/hy-drogenation kinetics and high thermodynamic stability, in particular for metal hydrides with high storage capacity. Because of the long-range disordered atomic structure, the amorphous structure, showing a wider interstitial configuration diversity, can provide hydrogen with more types of occupation sites. Such unique property leads to much larger hydrogen storage capacity, faster de/hydrogenation kinetics, local thermo-dynamic destabilization and even destruction resistance. Therefore, making use of amorphous structure is one of the attractive strategies for promoting the performance of metal hydrides. To develop amorphous hydrogen storage alloys, composition design is the first issue, and two main factors should be considered. One is the glass forming ability of alloys and the other is hydrogen storage ability of the alloys. Comparing with the crystalline counterparts, the amorphous hydrogen storage alloys exhibit some unique features: (1) the non-Arrhenius hydrogen diffusion; (2) the deviation from the Sieverts' law; (3) protean hydrogen -induced phase separation/crystallization; (4) plateau-free pressure-composition-isothermal curve; (5) ex-cessed storage capacity; etc. Till now, the developed hydrogen storage amorphous alloys are mainly Ti -based, Zr-based and Mg-based alloys. Some amorphous alloys do show attractive performance. In particular, Mg-based amorphous alloys have been investigated extensively in recent years. The hydrogen storage ca-pacity in Mg-based amorphous alloys can be readily higher than 3.0 wt%-H, and with addition of other elements, one can also obtain reasonable de/hydrogenation rate and temperature during electrochemical or gaseous process. Though the de/hydrogenation capacity and kinetics of the amorphous alloys can be much better than the crystalline counterparts, there are still great challenges, such as amorphous structure sta-bility, long-cycle reversible de/hydrogenation and irreversible hydrogen-induced amorphous phase trans-formation. With further exploration of alloy composition and material processing, there are great chances in using hydrogen storage amorphous alloys as energy storage material.(c) 2023 Published by Elsevier B.V.

关键词

作者关键词Hydrogen storage alloysAmorphous alloyMetallic glassMg-based alloy

Keywords PlusTI-ZR-NIGLASS-FORMING ABILITYOF-THE-ARTTHERMAL-STABILITYMETALLIC GLASSESSUPERCOOLED LIQUIDATOMIC-STRUCTUREX-RAYABSORPTION/DESORPTION BEHAVIORHYDRIDING PROPERTIES

作者信息

通讯作者地址

Zhu, M.

(通讯作者)

South China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Peoples R China

所属机构

South China University of Technology

地址

1 South China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Peoples R China

2 Jinan Univ, Inst Adv Wear & Corros Resistance & Funct Mat, Guangzhou 510632, Peoples R China

电子邮件地址memzhu@scut.edu.cn

类别/分类

研究方向ChemistryMaterials ScienceMetallurgy & Metallurgical Engineering

引文主题

2 Chemistry

2.282 Hydrogen Chemistry & Storage

2.282.594 Hydrogen Storage

Sustainable Development Goals

07 Affordable and Clean Energy

Web of Science 类别Chemistry, PhysicalMaterials Science, MultidisciplinaryMetallurgy & Metallurgical Engineering