Enhanced reversible hydrogen desorption properties and mechanism of Mg(BH4)(2)-AlH3-LiH composite
文献类型：期刊论文
| 作者 | Zheng, JG; Xiao, XZ; He, Y; Chen, M; Liu, MJ; Li, SQ; Chen, LX |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2018 |
| 卷号 | 762期号:-页码:548-554 |
| 关键词 | MAGNESIUM BOROHYDRIDE STORAGE PROPERTIES DEHYDROGENATION PROPERTIES MODERATE CONDITIONS NI NANOPARTICLES HYDRIDE LIBH4 CARBON DECOMPOSITION TEMPERATURE |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2018.05.267 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The Mg(BH4)(2)-AlH3-xLiH (x = 0, 0.5, 1) novel ternary composites have been synthesized through mechanical ball milling, their favorable dehydrogenation properties and mechanism have been experimentally investigated. It can be found that during ball milling, a slight amount of Mg(BH4)(2) would react with LiH and transform into LiBH4, while most Mg(BH4)(2) remained stable after ball milling. Two major dehydrogenation steps can be detected in the Mg(BH4)(2)-AlH3-xLiH composite, which belong to the decomposition of AlH3 and Mg(BH4)(2) , respectively. Remarkably, the onset hydrogen desorption temperature of Mg(BH4)(2)-AlH3-xLiH composite can be reduced to 125.9 degrees C, with a total hydrogen desorption capacity of 10.3 wt%. It is worth emphasizing that the reversible dehydrogenation capacity is obviously improved to 3.8 wt%, compared to the Mg(BH4)(2)-AlH3 composite. This reversible capacity can be held for 3 cycles without obvious degeneration. Microstructural analysis on de/rehydrogenated composite has identified the regeneration of [BU4](-) in Mg(BH4)(2)-AlH3-0.5LiH composite and revealed the role of LiH in the cycling hydrogen desorption and absorption processes. The formation of LiBH4 and MgH2 resulted from the rehydrogenation between MgAlB4 and LiH could be helpful for the stability of reversible hydrogen storage performance. (C) 2018 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/30936]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, SSRF, Shanghai 201800, Peoples R China 2.Zhejiang Univ, Sch Mat Sci & Engn, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China 3.Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, Hangzhou 310013, Zhejiang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, JG,Xiao, XZ,He, Y,et al. Enhanced reversible hydrogen desorption properties and mechanism of Mg(BH4)(2)-AlH3-LiH composite[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,762(-):548-554. |
| APA | Zheng, JG.,Xiao, XZ.,He, Y.,Chen, M.,Liu, MJ.,...&Chen, LX.(2018).Enhanced reversible hydrogen desorption properties and mechanism of Mg(BH4)(2)-AlH3-LiH composite.JOURNAL OF ALLOYS AND COMPOUNDS,762(-),548-554. |
| MLA | Zheng, JG,et al."Enhanced reversible hydrogen desorption properties and mechanism of Mg(BH4)(2)-AlH3-LiH composite".JOURNAL OF ALLOYS AND COMPOUNDS 762.-(2018):548-554. |
入库方式： OAI收割
来源：上海应用物理研究所
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