Size-dependence of carbon nanotube confinement in catalysis
文献类型：期刊论文
| 作者 | Zhang, Fan; Bao, Xinhe; Xiao, Jianping; Pan, Xiulian; Li, Haobo |
| 刊名 | CHEMICAL SCIENCE
 |
| 出版日期 | 2017 |
| 卷号 | 8期号:1页码:278-283 |
| 英文摘要 | An increasing number of studies have demonstrated that confinement within carbon nanotubes (CNTs) provides an effective approach for the modulation of catalysis. It was generally predicted that confinement became stronger with a decreasing diameter of CNTs. However, our present study here overturns the previous expectation: the influence on catalysis is not monotonic. Instead, it exhibits a volcano relationship with CNT diameter. Taking Pt catalyzing O-2 conversion and Re catalyzing N-2 conversion as probes using density functional theory, we show that only within tubes with an i. d. of similar to 1 nm can the activity of metal clusters be enhanced to its maximum. Furthermore, confinement only enhances the catalytic activity of metals with strong intrinsic binding with reactants, whereas it is suppressed for those with weak binding. These findings shed further light on the fundamental effects of confinement on catalysis, and could guide more rational design of confined catalysts. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | RU NANOPARTICLES ; WATER ; ENCAPSULATION ; ADSORPTION ; DIFFUSION ; DESIGN ; COVER ; IRON |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000391454500030 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/151870]  |
| 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 | Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, Zhongshan Rd 457, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Fan,Bao, Xinhe,Xiao, Jianping,et al. Size-dependence of carbon nanotube confinement in catalysis[J]. CHEMICAL SCIENCE,2017,8(1):278-283. |
| APA | Zhang, Fan,Bao, Xinhe,Xiao, Jianping,Pan, Xiulian,&Li, Haobo.(2017).Size-dependence of carbon nanotube confinement in catalysis.CHEMICAL SCIENCE,8(1),278-283. |
| MLA | Zhang, Fan,et al."Size-dependence of carbon nanotube confinement in catalysis".CHEMICAL SCIENCE 8.1(2017):278-283. |
入库方式： OAI收割
来源：大连化学物理研究所
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