In-situ formation of medium-entropy alloy nanopump to boost hydrogen storage in Mg-based alloy

被引：26

作者：

Si, Tingzhi ^{[1
]}

Yin, Fuhu ^{[1
]}

Zhang, Xiangxiang ^{[1
]}

Zhang, Qing'an ^{[1
]}

Liu, Dongming ^{[1
]}

Li, Yongtao ^{[1
]}

机构：

[1] Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002, Peoples R China

来源：

SCRIPTA MATERIALIA | 2023年 / 222卷

基金：

中国国家自然科学基金;

关键词：

Medium-entropy alloy; Mg-based alloy; Kinetics; Catalytic effect; CR;

D O I：

10.1016/j.scriptamat.2022.115052

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The Mg-based alloy with in-situ formed Ti0.35V0.35Nb0.2Cr0.1 medium-entropy alloy (MEA) nanoparticles was first prepared by a facile mechanochemistry method to resolve its sluggish hydrogen storage kinetics. This novel alloy can absorb a hydrogen capacity of approximately 0.70 wt.% at room-temperature and 2.62 wt.% at 100 & DEG;C with faster kinetics, where its apparent activation energy was greatly decreased to 85.1 kJ mol-1 from 163.7 kJ mol- 1 for pure Mg. The in-situ construction of MEA nanoparticles serves as a catalytic agent that was confirmed as an efficient route to improve hydrogen storage kinetics of Mg-based alloy.

引用

页数：6

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