Thermal-Stable Carbon Nanotube-Supported Metal Nanocatalysts by Mesoporous Silica Coating
文献类型：期刊论文
| 作者 | Sun, Zhenyu; Zhang, Hongye; Zhao, Yanfei; Huang, Changliang; Tao, Ranting; Liu, Zhimin; Wu, Zhenduo |
| 刊名 | LANGMUIR
 |
| 出版日期 | 2011-05-17 |
| 卷号 | 27期号:10页码:6244-6251 |
| ISSN号 | 0743-7463 |
| DOI | 10.1021/la105087f |
| 英文摘要 | A universal strategy was developed for the preparation of high-temperature-stable carbon nanotube (CNT) -supported metal nanocatalysts by encapsulation with a mesoporous silica coating. Specifically, we first showed the design of one novel catalyst, Pt(@)CNT/SiO(2), with a controllable mesoporous silica coating in the range 11-39 nm containing pores approximate to 3 nm in diameter. The hollow porous silica shell offers a physical barrier to separate Pt nanoparticles from contact with each other, and at the same time the access of reactant species to Pt was not much affected. As a result, the catalyst showed high thermal stability against metal particle agglomeration or sintering even after being subjected to harsh treatments up to 500 degrees C. In addition, degradation in Catalytic activity was minimized for the hydrogenation of nitrobenzene over the catalyst treated at 300 degrees C for 2 h. The scheme was also extended to coat porous silica onto the surfaces of CuRu(@)CNT and the resultant catalyst thereby can be reusable at least four times without loss of activity for the hydrogenolysis of glycerol. These results suggest that the as-prepared nanostructured CNT-supported catalysts may find promising applications, especially in conditions. |
| 语种 | 英语 |
| WOS记录号 | WOS:000290292900062 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/71879]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Zhimin |
| 作者单位 | Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Zhenyu,Zhang, Hongye,Zhao, Yanfei,et al. Thermal-Stable Carbon Nanotube-Supported Metal Nanocatalysts by Mesoporous Silica Coating[J]. LANGMUIR,2011,27(10):6244-6251. |
| APA | Sun, Zhenyu.,Zhang, Hongye.,Zhao, Yanfei.,Huang, Changliang.,Tao, Ranting.,...&Wu, Zhenduo.(2011).Thermal-Stable Carbon Nanotube-Supported Metal Nanocatalysts by Mesoporous Silica Coating.LANGMUIR,27(10),6244-6251. |
| MLA | Sun, Zhenyu,et al."Thermal-Stable Carbon Nanotube-Supported Metal Nanocatalysts by Mesoporous Silica Coating".LANGMUIR 27.10(2011):6244-6251. |
入库方式： OAI收割
来源：化学研究所
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