文献类型：期刊文献

英文题名：Ionic liquid-Pluronic P123 mixed micelle stabilized water-soluble Ni nanoparticles for catalytic hydrogenation

作者：Yu, Yinyin[1];Zhu, Wenwen[1];Hua, Li[1];Yang, Hanmin[2,3];Qiao, Yunxiang[1];Zhang, Ran[1];Guo, Li[1];Zhao, Xiuge[1];Hou, Zhenshan[1]

机构：[1]E China Univ Sci & Technol, Res Inst Ind Catalysis, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]South Central Univ Nationalities, State Ethn Affairs Commiss, Key Lab Catalysis & Mat Sci, Wuhan 430074, Hubei Province, Peoples R China;[3]South Central Univ Nationalities, Minist Educ, Wuhan 430074, Hubei Province, Peoples R China

年份：2014

卷号：415

起止页码：117

外文期刊名：JOURNAL OF COLLOID AND INTERFACE SCIENCE

收录：;EI(收录号：20134817027058);WOS:【SCI-EXPANDED(收录号:WOS:000327915300017)】；

基金：The authors are grateful for support from the National Natural Science Foundation of China (21073058, U1179302, 21373082), the Research Fund for the Doctoral Program of Higher Education of China (20100074110014), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Selective hydrogenation; Ni nanoparticles; Ionic liquids; Triblock polymers P123; Aqueous phase

摘要：Ionic liquid (1-butyl-2,3-dimethylimidazolium acetate, [BMMIm]OAc)-Pluronic P123 mixed micelle stabilized water-soluble Ni nanoparticles were characterized by UV-vis, XRD, XPS and TEM and then employed for catalytic hydrogenation. It was demonstrated that the mixed-micelle stabilized Ni NPs showed excellent catalytic performance for the selective hydrogenation of C=C and nitro compounds in the aqueous phase under very mild reaction conditions, and also the Ni NPs catalysts can be recycled at least for eight times without significant decrease in catalytic activity. The results of characterization revealed that the mixed micelle-stabilized Ni NPs catalysts were highly dispersed in aqueous phases even after five catalytic recycles. In addition, adding ionic liquid ([BMMIm]OAc) can affect the micelle structure of P123 solutions and thus afford an additional steric protection from aggregation of Ni NPs, resulting in enhancing stability and catalytic activity of Ni NPs. (C) 2013 Elsevier Inc. All rights reserved.