Hydrogen activation and storage properties of laves phase Ti1-xScxMn1.6V0.4 alloys

doi:10.1016/j.ijhydene.2021.08.017

CORC > 金属研究所 > 中国科学院金属研究所

	Hydrogen activation and storage properties of laves phase Ti1-xScxMn1.6V0.4 alloys
	Ma, Ping 3; Li, Wuhui 1; Wu, Erdong 2
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2021-10-06
卷号	46 期号:69 页码:34389-34398
关键词	Hydrogen storage Laves phase Thermodynamics Hydrogen activation Hydrogen induced cracking Particle size effect
ISSN号	0360-3199
DOI	10.1016/j.ijhydene.2021.08.017
通讯作者	Wu, Erdong(ewu@imr.ac.cn)
英文摘要	Hydrogen activation, storage properties and associated crystal structures of Ti1-xScxMn1.6-V-0.4 (x = 0, 0.05, 0.1, 0.15, 0.2, 0.25) alloys are investigated by hydrogenation and XRD. The unit-cells of alloys and hydrides expand with Sc content and hydrogen concentration. Minor addition of Sc significantly improves hydrogen activation and storage properties. The plateau pressure decreases, whereas the sloping factor and relative partial molar enthalpy for hydrogenation increase with Sc content. The activation properties strongly depend on the particle sizes. The bulk samples can easily be activated by implementing a hydrogen-induced cracking mechanism, which avoids removal of protective oxide films and compensates the lack of metallic B-metal in catalysis of hydrogen dissociation. Samples with smaller particle sizes are difficult to activate. The unusual particle size effect is interpreted by activation kinetics, and attributed to the high oxygen binding ability of B metals and their contribution to the surface oxide films. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000701801500012
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/166713]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wu, Erdong
作者单位	1.Henan Univ Sci & Technol, Sch Mat Sci & Engn, Luoyang 471003, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Anhui Univ Technol, Anal & Testing Cent, Maanshan 243002, Peoples R China
推荐引用方式 GB/T 7714	Ma, Ping,Li, Wuhui,Wu, Erdong. Hydrogen activation and storage properties of laves phase Ti1-xScxMn1.6V0.4 alloys[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2021,46(69):34389-34398.
APA	Ma, Ping,Li, Wuhui,&Wu, Erdong.(2021).Hydrogen activation and storage properties of laves phase Ti1-xScxMn1.6V0.4 alloys.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,46(69),34389-34398.
MLA	Ma, Ping,et al."Hydrogen activation and storage properties of laves phase Ti1-xScxMn1.6V0.4 alloys".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 46.69(2021):34389-34398.