Reversible dehydrogenation of Mg(BH4)(2)-LiH composite under moderate conditions
文献类型：期刊论文
| 作者 | Yang, Junzhi1,2; Fu, He1; Song, Ping1; Zheng, Jie1; Li, Xingguo1 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2012-04-01 |
| 卷号 | 37期号:8页码:6776-6783 |
| 关键词 | Hydrogen Storage Recycling Metastable Phases Thermodynamics Nuclear Magnetic Resonance (Nmr) |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2012.01.109 |
| 英文摘要 | The Mg(BH4)(2)-xLiH (0.1 <= x <= 0.8) composites which exhibit favorable dehydrogenation and encouraging reversibility are experimentally investigated. LiH additive reduces the onset temperature for dehydrogenation to 150 degrees C. And hydrogen release exceeds 10 wt.% from the new binary material below 250 degrees C. Furthermore, rehydrogenation results show that 3.6 wt.% hydrogen can still be recharged after twenty cycles at 180 degrees C. It should be emphasized that the long-term reversibility of borohydride under 200 degrees C is long overdue. TPD, PCT, and high-pressure DSC measurements are used to characterize the improvements in thermodynamic and kinetic ways. In addition, FT-IR and NMR studies indicate that the composite has a significant synergistic effect during (de)hydrogenation processes. This work suggests that controlled cation stoichiometry combined with doping by metal Li+ subvalent to Mg2+ facilitate the formation of polyborane intermediates [B3H8](-) and [B2H6](2-). They improve the dehydrogenation properties and make the material reversible under mild conditions. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000303952300048 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49857]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Xingguo |
| 作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, BNLMS, Beijing 100871, Peoples R China 2.Peking Univ, Coll Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Junzhi,Fu, He,Song, Ping,et al. Reversible dehydrogenation of Mg(BH4)(2)-LiH composite under moderate conditions[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2012,37(8):6776-6783. |
| APA | Yang, Junzhi,Fu, He,Song, Ping,Zheng, Jie,&Li, Xingguo.(2012).Reversible dehydrogenation of Mg(BH4)(2)-LiH composite under moderate conditions.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,37(8),6776-6783. |
| MLA | Yang, Junzhi,et al."Reversible dehydrogenation of Mg(BH4)(2)-LiH composite under moderate conditions".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 37.8(2012):6776-6783. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。