Hydrogen desorption performance of Ti-mediated MgH(2) and Mg(2)NiH(4)
文献类型：期刊论文
| 作者 | Zhou Guang-You1; Zheng Shi-You1; Fang Fang1; Zhang Jing1; Xu Fen2; Sun Li-Xian2; Chen Guo-Rong1; Sun Da-Lin1 |
| 刊名 | acta chimica sinica
 |
| 出版日期 | 2008-05-14 |
| 卷号 | 66期号:9页码:1037-1041 |
| 关键词 | Ti doping hydrogen desorption MgH(2) Mg(2)NiH(4) |
| 英文摘要 | tif(3) and ti(obu-n)(4)-doped mgh(2) and mg(2)nih(4) were investigated with regard to hydrogen desorption performance. it was found that the onset temperature for hydrogen release was around 420 degrees c for the blank mgh(2), but decrease to 360 and 410 degrees c for the tif(3)- and the ti(obu-n)(4)-doped mgh(2), respectively. for mg(2)nih(4), it was reduced from 230 to 220 degrees c after doping with tif(3), but remained unchanged once doping with ti(obu-n)(4). these indicate that tif(3) is more efficient than ti(obu-n)(4) in reducing the stability of mgh(2) and mg(2)nih(4). the enhanced desorption kinetics is attained in the tif(3)-doped mgh(2), but not in the tif(3)-doped mg(2)nih(4). combined with xrd and ftir techniques, the catalytic activity was thought to be jointly influenced by the crystal structure of the hydride and the electronic structure of the catalyst. the decrease in hydrogen release temperature and the improvement in kinetics are owing to the weakening of the mg(ni)-h bonds through the interactions between the catalyst and the hydride, thus facilitating energetically the formation of intra-h center dot center dot center dot h pairings that further recombine readily towards the molecular hydrogen. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | storage properties ; hydrides ; magnesium ; sorption ; alloys ; ni ; titanium ; fe |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000256268300005 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/141177]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou Guang-You,Zheng Shi-You,Fang Fang,et al. Hydrogen desorption performance of Ti-mediated MgH(2) and Mg(2)NiH(4)[J]. acta chimica sinica,2008,66(9):1037-1041. |
| APA | Zhou Guang-You.,Zheng Shi-You.,Fang Fang.,Zhang Jing.,Xu Fen.,...&Sun Da-Lin.(2008).Hydrogen desorption performance of Ti-mediated MgH(2) and Mg(2)NiH(4).acta chimica sinica,66(9),1037-1041. |
| MLA | Zhou Guang-You,et al."Hydrogen desorption performance of Ti-mediated MgH(2) and Mg(2)NiH(4)".acta chimica sinica 66.9(2008):1037-1041. |
入库方式： OAI收割
来源：大连化学物理研究所
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。