文献类型：期刊文献

英文题名：Cyclodextrin-Based Polymer-Assisted Ru Nanoparticles for the Aqueous Hydrogenation of Biomass-Derived Platform Molecules

作者：Chen, Manyu[1];Dong, Qifeng[1];Ni, Wenxiu[1];Zhao, Xiuge[1];Gu, Qingwen[1];Tang, Guoping[1];Li, Difan[1];Ma, Wenbao[1];Hou, Zhenshan[1]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Res Inst Ind Catalysis, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China

年份：2017

卷号：2

期号：32

起止页码：10537

外文期刊名：CHEMISTRYSELECT

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000415856800034)】；

基金：The authors are grateful for support from the National Natural Science Foundation of China (21373082, 21773061) and innovation Program of Shanghai Municipal Education Commission (15ZZ031), and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Biomass; Cyclodextrin; Hydrogenation; Platform molecules; Ru nanoparticles

摘要：A green water-soluble cyclodextrin polymer has been prepared through cross-linking of -cyclodextrin (-CD) and polyethylene glycol diglycidyl ether (PEGDE). The as-synthesized co-polymer (PEG-CD) showed an excellent ability to stabilize and constrain the size of Ru-Nanoparticles in aqueous phase, as compared with other polymer stabilizer used in this work such as polyvinyl pyrrolidone (PVP-K30) and polyethylene glycol diglycidyl ether (PEGDE). The co-ploymer PEG-CD-stabilizied Ru NPs have been found to be a highly efficient catalyst in the aqueous hydrogenation of levulinic acid into -valerolactone under mild reaction condition. This catalyst system can be easily extended to the selective hydrogenation of other lignocellulose-derived platform molecule including 5-hydroxymethylfurfural, furfural, phenol, 2-methoxy-4-methyl phenol and 2-methoxy-4-ethyl phenol, etc. The further characterization analysis indicated that the small-sized and highly dispersed Ru NPs (1.2-2.0nm) embedded in co-ploymer PEG-CD matrix were highly stable for the consecutive catalytic recycles. Additionally, the inclusion interaction of substrate molecules and -CD units within polymer matrix played a crucial role in the enhancement of catalytic performance.