Oxidative Purification of Carbon Nanotubes and Its Impact on Catalytic Performance in Oxidative Dehydrogenation Reactions
文献类型：期刊论文
| 作者 | A. Rinaldi ; J. Zhang ; B. Frank ; D. S. Su ; S. B. A. Hamid ; R. Schlogl |
| 刊名 | Chemsuschem
 |
| 出版日期 | 2010 |
| 卷号 | 3期号:2页码:254-260 |
| 关键词 | carbon catalysis dehydrogenation nanotubes oxidation activated carbon double-wall selective oxidation raman-spectroscopy thermal-desorption amorphous-carbon heat-treatment d-band graphite gasification |
| ISSN号 | 1864-5631 |
| 中文摘要 | Oxidative purification with mild diluted HNO(3) followed by NaOH washing lowers the amount of amorphous carbon attached to multiwalled carbon nanotubes (CNTs). The graphitic structure improves remarkably by further annealing in argon at elevated temperatures, that is, 1173, 1573, and 1973 K. The influence of the purification treatment on the catalytic activity of the CNTs is investigated for the oxidative dehydrogenation (ODH) of ethylbenzene and propane as probe reactions. All samples tend to approach an appropriately ordered structure and Raman analysis of the used samples displays a D/G band ratio of 0 95-1 42. Oxygen functionalities are partly removed by the annealing treatment and can be rebuilt to some extent by oxygen molecules in the ODH reactant flow. The presence of amorphous carbon is detrimental to the catalytic performance as it allows for unwanted functional groups occurring in parallel with the formation of the selective (di)ketonic active sites |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/31423]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | A. Rinaldi,J. Zhang,B. Frank,et al. Oxidative Purification of Carbon Nanotubes and Its Impact on Catalytic Performance in Oxidative Dehydrogenation Reactions[J]. Chemsuschem,2010,3(2):254-260. |
| APA | A. Rinaldi,J. Zhang,B. Frank,D. S. Su,S. B. A. Hamid,&R. Schlogl.(2010).Oxidative Purification of Carbon Nanotubes and Its Impact on Catalytic Performance in Oxidative Dehydrogenation Reactions.Chemsuschem,3(2),254-260. |
| MLA | A. Rinaldi,et al."Oxidative Purification of Carbon Nanotubes and Its Impact on Catalytic Performance in Oxidative Dehydrogenation Reactions".Chemsuschem 3.2(2010):254-260. |
入库方式： OAI收割
来源：金属研究所
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