文献类型：期刊文献

英文题名：Chitosan microspheres supported palladium heterogeneous catalysts modified with pearl shell powders

作者：Zeng, Minfeng[1];Qi, Chenze[1];Zhang, Xian-man[1]

机构：[1]Shaoxing Univ, Zhejiang Key Lab Alternat Technol Fine Chem Proc, Shaoxing 312000, Zhejiang, Peoples R China

年份：2013

卷号：55

起止页码：240

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：SCI-EXPANDED(收录号：WOS:000316778400033)、、Scopus(收录号：2-s2.0-84873906003)、WOS

基金：The authors acknowledge the financial support from the National Natural Science Foundation of China (grant number: 21203123) and Key Sci-Tech Innovation Team Project of Zhejiang Province, China (grant number: 2012R10014-12).

语种：英文

外文关键词：Palladium catalyst; Chitosan microsphere; Shell powders; Heterogeneous catalyst; Heck reaction

外文摘要：Significant enhancement of the catalytic stability and activity was obtained for the heterogeneous palladium catalyst supported on the shell powders-reinforced chitosan microspheres. For example, over 90% cross-coupling yields were achieved using as low as 0.05 mol% palladium catalyst loading for the Heck-type reaction of iodobenzene with n-butyl acrylate. Such significant enhancement of the catalytic stability and activity can be attributed to the intermolecular interactions of the surface polar molecules of the incorporated shell powders with the surrounding chitosan molecules as well as the deposited palladium species. (C) 2013 Elsevier B.V. All rights reserved.