Confined Pyrolysis within Metal-Organic Frameworks To Form Uniform Ru-3 Clusters for Efficient Oxidation of Alcohols
文献类型：期刊论文
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| 作者 | Ji, SF; Chen, YJ; Fu, Q; Chen, YF; Dong, JC ; Chen, WX; Li, Z; Wang, Y; Gu, L; He, W
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| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 ; JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
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| 出版日期 | 2017 ; 2017 |
| 卷号 | 139期号:29页码:9795-9798 |
| ISSN号 | 0002-7863 ; 0002-7863 |
| DOI | 10.1021/jacs.7b05018 ; 10.1021/jacs.7b05018 |
| 文献子类 | Article ; Article |
| 英文摘要 | Here we report a novel approach to synthesize atomically dispersed uniform clusters via a cage-separated precursor preselection and pyrolysis strategy. To illustrate this strategy, well-defined Ru-3(CO)(12) was separated as a precursor by suitable molecular-scale cages of zeolitic imidazolate frameworks (ZIFs). After thermal treatment under confinement in the cages, uniform Ru-3 dusters stabilized by nitrogen species (Ru-3/CN) were obtained. Importantly, we found that Ru-3/CN exhibits excellent catalytic activity (100% conversion), high chemoselectivity (100% for 2-aminobenzaldehyde), and significantly high turnover frequency (TOF) for oxidation of 2-aminobenzyl alcohol. The TOF of Ru-3/CN (4320 h(-1)) is about 23 times higher than that of small-sized (ca. 2.5 nm) Ru particles (TOF = 184 h(-1)). This striking difference is attributed to a disparity in the interaction between Ru species and adsorbed reactants.; Here we report a novel approach to synthesize atomically dispersed uniform clusters via a cage-separated precursor preselection and pyrolysis strategy. To illustrate this strategy, well-defined Ru-3(CO)(12) was separated as a precursor by suitable molecular-scale cages of zeolitic imidazolate frameworks (ZIFs). After thermal treatment under confinement in the cages, uniform Ru-3 dusters stabilized by nitrogen species (Ru-3/CN) were obtained. Importantly, we found that Ru-3/CN exhibits excellent catalytic activity (100% conversion), high chemoselectivity (100% for 2-aminobenzaldehyde), and significantly high turnover frequency (TOF) for oxidation of 2-aminobenzyl alcohol. The TOF of Ru-3/CN (4320 h(-1)) is about 23 times higher than that of small-sized (ca. 2.5 nm) Ru particles (TOF = 184 h(-1)). This striking difference is attributed to a disparity in the interaction between Ru species and adsorbed reactants. |
| WOS关键词 | SINGLE-ATOM CATALYSTS ; SINGLE-ATOM CATALYSTS ; FUNCTIONAL MATERIALS ; PLATINUM ; AIR ; FUNCTIONAL MATERIALS ; PLATINUM ; AIR |
| WOS研究方向 | Chemistry ; Chemistry |
| 语种 | 英语 ; 英语 |
| WOS记录号 | WOS:000406649600012 ; WOS:000406649600012 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285245]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_实验物理中心 高能物理研究所_管理与技术支持 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Ji, SF,Chen, YJ,Fu, Q,et al. Confined Pyrolysis within Metal-Organic Frameworks To Form Uniform Ru-3 Clusters for Efficient Oxidation of Alcohols, Confined Pyrolysis within Metal-Organic Frameworks To Form Uniform Ru-3 Clusters for Efficient Oxidation of Alcohols[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2017, 2017,139, 139(29):9795-9798, 9795-9798. |
| APA | Ji, SF.,Chen, YJ.,Fu, Q.,Chen, YF.,Dong, JC.,...&董俊才.(2017).Confined Pyrolysis within Metal-Organic Frameworks To Form Uniform Ru-3 Clusters for Efficient Oxidation of Alcohols.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,139(29),9795-9798. |
| MLA | Ji, SF,et al."Confined Pyrolysis within Metal-Organic Frameworks To Form Uniform Ru-3 Clusters for Efficient Oxidation of Alcohols".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 139.29(2017):9795-9798. |
入库方式： OAI收割
来源：高能物理研究所
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