Thermal decomposition kinetics of light-weight composite NaNH2-NaBH4 hydrogen storage materials for fuel cells
文献类型：期刊论文
| 作者 | Bai, Ying1; Wu, Chuan1; Wu, Feng1; Yang, Jian-hu1; Zhao, Lu-lu1; Long, Fei1; Yi, Bao-lian2 |
| 刊名 | international journal of hydrogen energy
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 37期号:17页码:12973-12979 |
| 关键词 | Fuel cells Hydrogen storage material Kinetics NaNH2-NaBH4 Catalysis Co-B |
| 英文摘要 | pristine and co-b doped nanh2-nabh4 (2/1 molar rate) hydrogen storage materials were synthesized via a ball milling method. the kinetic parameters, especially the activation energies were calculated by the achar differential and the coats-redfern integral methods, based on the thermogravimetry curves of the decomposition processes of the hydrogen storage materials. the as-obtained activation energy for the pristine nanh2-nabh4 (2/1) is 159.6 kj/mol, while that for the co-b doped nanh2-nabh4 (211) is 70 kj/mol, only 43.9% of the former, which indicates the co-b catalyst can dramatically promote the hydrogen generation reaction. the structural evolution and the hydrogen releasing performance of the co-b doped nanh2-nabh4 (211) were investigated by x-ray diffraction (xrd), thermogravimetry (tg) and differential thermal analysis (dta). then, the catalytic mechanism of nanh2-nabh4 (2/1) decomposition promoted by co-b was discussed and illustrated. it implies that the existence of co-b catalyst can promote the loss of electron from h-, thus improve the kinetics and accelerate the formation of h-2 upon heating. copyright (c) 2012, hydrogen energy publications, llc. published by elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; electrochemistry ; energy & fuels |
| 研究领域[WOS] | chemistry ; electrochemistry ; energy & fuels |
| 关键词[WOS] | complex hydrides ; nabh4 solution ; systems ; catalysts ; borohydride ; generation ; libh4 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000309024700108 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/143113]  |
| 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.Beijing Inst Technol, Sch Chem Engn & Environm, Beijing Key Lab Environm Sci & Engn, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Ying,Wu, Chuan,Wu, Feng,et al. Thermal decomposition kinetics of light-weight composite NaNH2-NaBH4 hydrogen storage materials for fuel cells[J]. international journal of hydrogen energy,2012,37(17):12973-12979. |
| APA | Bai, Ying.,Wu, Chuan.,Wu, Feng.,Yang, Jian-hu.,Zhao, Lu-lu.,...&Yi, Bao-lian.(2012).Thermal decomposition kinetics of light-weight composite NaNH2-NaBH4 hydrogen storage materials for fuel cells.international journal of hydrogen energy,37(17),12973-12979. |
| MLA | Bai, Ying,et al."Thermal decomposition kinetics of light-weight composite NaNH2-NaBH4 hydrogen storage materials for fuel cells".international journal of hydrogen energy 37.17(2012):12973-12979. |
入库方式： OAI收割
来源：大连化学物理研究所
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