Improving Hydrogen Sorption Kinetics of the Mg(NH2)(2)-LiH System by the Tuning Particle Size of the Amide
文献类型：期刊论文
| 作者 | Xie, Lei1; Liu, Yang1; Li, Guanqiao1; Li, Xingguo1,2 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2009-08-13 |
| 卷号 | 113期号:32页码:14523-14527 |
| ISSN号 | 1932-7447 |
| DOI | 10.1021/jp904346x |
| 英文摘要 | Mg(NH2)(2) with three different particle sizes of 100, 500, and 2000 nm are obtained by a series of reactions between Mg, H-2, and NH3. The ammonia desorption temperature decreases with the particle size. In addition, the hydrogen desorption kinetics increases obviously with decreasing the particle size of amide after mixing with LiH. The desorption activation energy of the three mixed samples is 122.2, 134.7, and 182.0 kJ/mol with increasing the particle size. After dehydrogenation, the particle size of the product is similar to that of the amide before dehydrogenation. Due to the larger specific surface area and reduced diffusion distance, the absorption kinetics increases as well with decreasing the particle size. The relationship between particle size and hydrogen sorption kinetics is also discussed. |
| 语种 | 英语 |
| WOS记录号 | WOS:000268661300070 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/68311]  |
| 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, BNLMS, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Peking Univ, Coll Engn, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Lei,Liu, Yang,Li, Guanqiao,et al. Improving Hydrogen Sorption Kinetics of the Mg(NH2)(2)-LiH System by the Tuning Particle Size of the Amide[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2009,113(32):14523-14527. |
| APA | Xie, Lei,Liu, Yang,Li, Guanqiao,&Li, Xingguo.(2009).Improving Hydrogen Sorption Kinetics of the Mg(NH2)(2)-LiH System by the Tuning Particle Size of the Amide.JOURNAL OF PHYSICAL CHEMISTRY C,113(32),14523-14527. |
| MLA | Xie, Lei,et al."Improving Hydrogen Sorption Kinetics of the Mg(NH2)(2)-LiH System by the Tuning Particle Size of the Amide".JOURNAL OF PHYSICAL CHEMISTRY C 113.32(2009):14523-14527. |
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来源：化学研究所
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