A study of oxidizing centers in carbon nanotubes by solid-state NMR
文献类型：期刊论文
| 作者 | Shen, Wanling1; Li, Xin1; Liu, Xin2 |
| 刊名 | rsc advances
 |
| 出版日期 | 2015 |
| 卷号 | 5期号:74页码:60380-60385 |
| 英文摘要 | functionalized carbon nanotubes (cnts) play an important role as catalysts in several oxidation reactions. active centers, present in a catalyst, are mainly associated with oxidizing functional groups. therefore, determining the concentration of oxidizing centers from the various functional groups present on the surface of cnts is very important, but it is yet to be achieved. in the present study, solid-state nmr ssnmr techniques were employed to study the adsorption behavior of trimethylphosphine (tmp) in cnts using tmp as a probe molecule. the results show that tmp gets oxidized to tmpo (trimethylphosphine oxide). the concentration of oxidizing centers was also selectively measured in the order of sub-mmol per g, employing ssnmr. the oxidizing centers comprise a very small portion among the various functional groups present on the surface of cnts. the concentration of oxidizing centers was found to increase as the degree of functionalization of cnts increased. further studies are required to understand the exact structure of oxidizing centers present in cnts. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, multidisciplinary |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | high-resolution xps ; oxidative dehydrogenation ; probe molecule ; acid sites ; ammonia-synthesis ; zeolite-y ; catalysts ; oxide ; trimethylphosphine ; surface |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000358230400069 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/146408]  |
| 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.Henan Univ Technol, Coll Chem & Chem Engn, Zhengzhou 450001, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shen, Wanling,Li, Xin,Liu, Xin. A study of oxidizing centers in carbon nanotubes by solid-state NMR[J]. rsc advances,2015,5(74):60380-60385. |
| APA | Shen, Wanling,Li, Xin,&Liu, Xin.(2015).A study of oxidizing centers in carbon nanotubes by solid-state NMR.rsc advances,5(74),60380-60385. |
| MLA | Shen, Wanling,et al."A study of oxidizing centers in carbon nanotubes by solid-state NMR".rsc advances 5.74(2015):60380-60385. |
入库方式： OAI收割
来源：大连化学物理研究所
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