Effect of interlayer and deposition temperature on the hydrogen storage properties of amorphous Mg-based thin films

被引：6

作者：

Han, Bing ^{[1
]}

Yu, Shaobo ^{[2
]}

Wang, Hui ^{[2
]}

Lu, Yanshan ^{[3
]}

Cai, Weitong ^{[3
]}

Zhang, Peng ^{[1
]}

Li, Wei ^{[1
]}

Lin, Huai-Jun ^{[1
]}

机构：

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

[2] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China

[3] Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 50卷

基金：

中国国家自然科学基金;

关键词：

Mg-based amorphous alloys; Thin films; Hydrogen storage; Interlayers; Deposition temperature; ROOM-TEMPERATURE; SORPTION; HYDRIDE; ALLOY; CAPACITY; KINETICS; PD;

D O I：

10.1016/j.ijhydene.2023.06.235

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, the effect of different interlayers (including Mo, Nb, and Ti) and deposition temperatures (including 25 degrees C, 75 degrees C, 150 degrees C and 200 degrees C) on the hydrogen storage performance of MgNi amorphous alloy films are studied. On the one hand, the MgNi amorphous alloy films remain undestroyed after hydrogen absorption and desorption cycles with the help of Mo, Nb and Ti interlayers. However, the onset desorption temperature and peak desorption temperature of the MgNi amorphous alloy films are almost unchanged after inserting the interlayers. On the other hand, as the deposition temperature increases from 25 degrees C to 200 degrees C, there are nanocrystalline Mg2Ni and Mg phases formed in the amorphous MgNi alloy matrix. The crystalline-amorphous structure provides abundant nucleation sites for hydride formation, and accelerate the diffusion and dissociation of hydrogen.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：84 / 92

页数：9

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