期刊
RESEARCH ON CHEMICAL INTERMEDIATES
卷 45, 期 9, 页码 4349-4366出版社
SPRINGER
DOI: 10.1007/s11164-019-03835-y
关键词
Halloysite; Heterogeneous catalyst; Hybrid; Polymer; Hydrogenation; Suzuki reaction
资金
- Iran Polymer and Petrochemical Institute
- Alzahra University
- Iran National Science Foundation
A covalent hybrid of halloysite-poly(methyl methacrylate-co-maleic anhydride) was prepared and applied for the immobilization of Pd nanoparticles. The hybrid system, Pd@Hal-Gua-Poly, was then characterized via TEM, TGA, ICP, BET, FTIR and XRD and successfully used as a heterogeneous catalyst for promoting two main Pd-catalyzed reactions, i.e. hydrogenation of nitro-arenes and Suzuki coupling reaction under mild and eco-friendly conditions. The study of recyclability of the catalyst confirmed high recyclability and low Pd leaching of Pd@Hal-Gua-Poly. Moreover, the hot-filtration test showed the heterogeneous nature of the catalysts. Notably, the comparison of the activity of the catalyst with that of Pd@Hal and Pd@Poly confirmed the superior catalytic activity of the former, indicating that the hybridization of Hal and Poly could lead to the improvement of the catalytic activity. [GRAPHICS] .
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