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Effect of surface morphology on initial hydrogen diffusion in vanadium alloys
Liu, Zhiyang; Xiong, Liangyin; Liu, Shi
2019-04-15
Source PublicationMATERIALS LETTERS
ISSN0167-577X
Volume241Pages:100-103
AbstractThe 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.
KeywordVanadium alloys Plateau pressure Density functional theory Hydrogen absorption Diffusion Surfaces
Indexed BySCI
Language英语
WOS IDWOS:000458792600025
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81184
Collection中国科学院金属研究所
Recommended Citation
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.
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