The combined catalytic action of solid acids with nickel for the transformation of polypropylene into carbon nanotubes by pyrolysis
文献类型：期刊论文
| 作者 | Song, Rongjun; Jiang, Zhiwei; Bi, Wuguo; Cheng, Wenxi; Lu, Jun; Huang, Baotong; Tang, Tao |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2007 |
| 卷号 | 13期号:11页码:3234-3240 |
| 关键词 | Carbenium Ions Catalysis Nanotubes Nickel Pyrolysis |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.200601018 |
| 英文摘要 | The effects of both organically modified montmorillonite (OMMT) and Ni2O3 on the carbonization of polypropylene (PP) during pyrolysis were investigated. The results from TEM and Raman spectroscopy showed that the carbonized products of PP were mainly multiwalled carbon nanotubes (MWNTs). Surprisingly, a combination of OMMT and Ni2O3 led to high-yield formation of MWNTs. X-ray powder diffraction (XRD) and GC-MS were used to investigate the mechanism of this combination for the high-yield formation of MWNTs from PP. Bronsted acid sites were created in degraded OMMT layers by thermal decomposition of the modifiers. The resultant carbenium ions play an important role in the carbonization of PP and the formation of MWNTs. The degradation of PP was induced by the presence of carbenium ions to form predominantly products with lower carbon numbers that could be easily catalyzed by the nickel catalyst for the growth of MWNTs. Furthermore, carbenium ions are active intermediates that promote the growth of MWNTs from the degradation products with higher carbon numbers through hydride-transfer reactions. The XRD measurements showed that Ni2O3 was reduced into metallic nickel (Ni) in situ to afford the active sites for the growth of MWNTs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000245734800023 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/62885]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Tang, Tao |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.NE Univ Technol, Dept Chem, Shenyang 110004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Rongjun,Jiang, Zhiwei,Bi, Wuguo,et al. The combined catalytic action of solid acids with nickel for the transformation of polypropylene into carbon nanotubes by pyrolysis[J]. CHEMISTRY-A EUROPEAN JOURNAL,2007,13(11):3234-3240. |
| APA | Song, Rongjun.,Jiang, Zhiwei.,Bi, Wuguo.,Cheng, Wenxi.,Lu, Jun.,...&Tang, Tao.(2007).The combined catalytic action of solid acids with nickel for the transformation of polypropylene into carbon nanotubes by pyrolysis.CHEMISTRY-A EUROPEAN JOURNAL,13(11),3234-3240. |
| MLA | Song, Rongjun,et al."The combined catalytic action of solid acids with nickel for the transformation of polypropylene into carbon nanotubes by pyrolysis".CHEMISTRY-A EUROPEAN JOURNAL 13.11(2007):3234-3240. |
入库方式： OAI收割
来源：化学研究所
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。