Effect of surface morphology on initial hydrogen diffusion in vanadium alloys

doi:10.1016/j.matlet.2019.01.079

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	Effect of surface morphology on initial hydrogen diffusion in vanadium alloys
	Liu, Zhiyang 1,2; Xiong, Liangyin 1; Liu, Shi 1
刊名	MATERIALS LETTERS
	2019-04-15
卷号	241 页码:100-103
关键词	Vanadium alloys Plateau pressure Density functional theory Hydrogen absorption Diffusion Surfaces
ISSN号	0167-577X
DOI	10.1016/j.matlet.2019.01.079
通讯作者	Xiong, Liangyin(lyxiong@imr.ac.cn) ; Liu, Shi(sliu@imr.ac.cn)
英文摘要	The hydrogen absorption properties and diffusion behavior in V-3A alloys (V, V97Al3, V97Ru3) were studied by pressure-composition-temperature measurements and first-principles calculations. It was found that addition of Al and Ru could increase first plateau pressure. With the largest surface area among these alloy powders, V-3Ru achieved the highest hydrogen diffusivity at 433 K under an initial pressure of 1500 Pa. Hydrogen diffusion behaviors were examined by DFT calculations of barriers in both surface and internal cases of V-3A alloys. It revealed that initial diffusion rate was related to surface morphology. The results are expected to provide useful guidelines for understanding hydrogen absorption and diffusion properties of hydrogen storage materials. (C) 2019 Elsevier B.V. All rights reserved.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000458792600025
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/131989]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xiong, Liangyin; Liu, Shi
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zhiyang,Xiong, Liangyin,Liu, Shi. Effect of surface morphology on initial hydrogen diffusion in vanadium alloys[J]. MATERIALS LETTERS,2019,241:100-103.
APA	Liu, Zhiyang,Xiong, Liangyin,&Liu, Shi.(2019).Effect of surface morphology on initial hydrogen diffusion in vanadium alloys.MATERIALS LETTERS,241,100-103.
MLA	Liu, Zhiyang,et al."Effect of surface morphology on initial hydrogen diffusion in vanadium alloys".MATERIALS LETTERS 241(2019):100-103.