Simple synthesis of sub-nanometer Pd clusters: High catalytic activity of Pd/PEG-PNIPAM in Suzuki reaction
文献类型：期刊论文
| 作者 | Chen, Zhe1; Liang, Yu1; Jia, Da-Shuang1; Cui, Zhi-Min2; Song, Wei-Guo3 |
| 刊名 | CHINESE JOURNAL OF CATALYSIS
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 38期号:4页码:651-657 |
| 关键词 | Temperature Responsive Hydrophilic Polymer Pd Nanoclusters Suzuki Reaction |
| 英文摘要 | Ultra-small metal nanoclusters have high surface energy and abundant active sites, and therefore their catalytic activities are usually significantly higher than those of larger nanoparticles. A temperature-responsive copolymer, namely poly(ethylene glycol)-co-poly(N-isoPropylacrylamide) (PEG-PNIPAM) was synthesized as the first step, and then ultra-small Pd clusters stabilized within PEG-PNIPAM copolymer micelles were formed by direct reduction. Pd nanoclusters of size less than 2 nm showed outstanding catalytic activity in the Suzuki coupling reaction. The reaction between iodobenzene and phenylboronic acid was completed in as little as 10 s (turnover frequency = 4.3 x 10(4)h(-1)). A yield of 64% was achieved in 5 min in the reaction between chlorobenzene and phenylboronic acid. The catalyst showed significant deactivation during three consecutive runs. However, this composite catalyst consisting of Pd/PEG-PNIPAM can be easily recycled based on the reversible phase transition of temperature-responsive PEG-PNIPAM. This catalyst therefore has good potential for practical applications. (C) 2017, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/39023]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China 2.Beihang Univ, Sch Chem & Environm, Beijing 100191, Peoples R China 3.Chinese Acad Sci, Inst Chem, Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Zhe,Liang, Yu,Jia, Da-Shuang,et al. Simple synthesis of sub-nanometer Pd clusters: High catalytic activity of Pd/PEG-PNIPAM in Suzuki reaction[J]. CHINESE JOURNAL OF CATALYSIS,2017,38(4):651-657. |
| APA | Chen, Zhe,Liang, Yu,Jia, Da-Shuang,Cui, Zhi-Min,&Song, Wei-Guo.(2017).Simple synthesis of sub-nanometer Pd clusters: High catalytic activity of Pd/PEG-PNIPAM in Suzuki reaction.CHINESE JOURNAL OF CATALYSIS,38(4),651-657. |
| MLA | Chen, Zhe,et al."Simple synthesis of sub-nanometer Pd clusters: High catalytic activity of Pd/PEG-PNIPAM in Suzuki reaction".CHINESE JOURNAL OF CATALYSIS 38.4(2017):651-657. |
入库方式： OAI收割
来源：化学研究所
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