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Impacts of Ce dopants on the hydrogen storage performance of Ti-Cr-V alloys

文献类型：期刊论文

作者Xue, Xiaoyi2,3; Ma, Chuanming2; Liu, Yanrong1,3,4; Wang, Hao1,3; Chen, Qingjun1,2,3,4
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2023-02-10
卷号934页码:9
关键词Solid-state hydrogen storage Arc melting Vanadium-based alloys Absorption kinetics Alloy thermodynamics
ISSN号0925-8388
DOI10.1016/j.jallcom.2022.167947
英文摘要Vanadium-based alloys are considered to be one of the most promising hydrogen storage materials due to their high hydrogen storage capacity under ambient conditions. However, their complex activation at high temperature and poor stability pose serious challenges for large-scale applications. In this work, a series of TiCr3V16Cex (x = 0, 0.1, 0.2, 0.4, 1) hydrogen storage alloys were developed with different Ce contents using arc melting. The hydrogen storage and desorption performance, activation mechanism, and hydrogen ab-sorption mechanism of the prepared alloys were investigated. Physical characterization confirms that the alloy is body-centered cubic (BCC) with Ce dopants, which exist in the form of oxides. The pressure-composition-temperature (PCT) test showed that the hydrogen storage plateau pressure of the Ce-doped alloy is increased compared to the Ce-free counterparts, while the hydrogen storage capacity decreased slightly with increasing Ce content. In addition, the influence of Ce doping on the alloy kinetics and ther-modynamics is also discussed. The results showed that the TiCr3V16Cex (x = 0.2, 0.4, 1) alloys could absorb and release hydrogen at room temperature without activation. As an optimum, the TiCr3V16Ce0.2 alloy shows a hydrogen absorption rate of up to 3.69 wt%, and an effective hydrogen desorption capacity of 2.29 wt% at 25 degrees C. After hydrogen absorption and desorption cycles, the alloy almost maintains its original capacity. The Ce-doped BCC alloy developed in this work provides a new route to achieve high hydrogen storage performance under mild conditions.(c) 2022 Elsevier B.V. All rights reserved.
WOS关键词THERMODYNAMICS ; MICROSTRUCTURE ; IMPROVEMENT ; DURABILITY ; CAPACITY ; KINETICS ; BEHAVIOR ; CERIUM
资助项目National Key R&D Program of China[2022YFB3504700] ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM2020DB08] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-3] ; Self-deployed Projects of Ganjiang Innovation Academy, Chinese Academy of Sciences[E055B003] ; Beijing Natural Science Foundation[2202052] ; Hebei Natural Science Foundation[B2020103043]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000890482200004
出版者ELSEVIER SCIENCE SA
资助机构National Key R&D Program of China ; Innovation Academy for Green Manufacture, Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Self-deployed Projects of Ganjiang Innovation Academy, Chinese Academy of Sciences ; Beijing Natural Science Foundation ; Hebei Natural Science Foundation
源URL[http://ir.ipe.ac.cn/handle/122111/56086]  
专题中国科学院过程工程研究所
通讯作者Liu, Yanrong; Chen, Qingjun
作者单位1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc,CAS Key Lab, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China
3.Zhengzhou Inst Emerging Ind Technol, Zhengzhou 450000, Peoples R China
4.Langfang Technol Serv Ctr Green Ind, Langfang 065001, Peoples R China
推荐引用方式
GB/T 7714		 Xue, Xiaoyi,Ma, Chuanming,Liu, Yanrong,et al. Impacts of Ce dopants on the hydrogen storage performance of Ti-Cr-V alloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2023,934:9.
APA Xue, Xiaoyi,Ma, Chuanming,Liu, Yanrong,Wang, Hao,&Chen, Qingjun.(2023).Impacts of Ce dopants on the hydrogen storage performance of Ti-Cr-V alloys.JOURNAL OF ALLOYS AND COMPOUNDS,934,9.
MLA Xue, Xiaoyi,et al."Impacts of Ce dopants on the hydrogen storage performance of Ti-Cr-V alloys".JOURNAL OF ALLOYS AND COMPOUNDS 934(2023):9.

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来源：过程工程研究所

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