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Affiliation of Author(s):化学工程学院

Teaching and Research Group:化学工程学院

Journal:APPLIED CATALYSIS A-GENERAL

Funded by:自选课题

Key Words:Pd nanoparticles; UiO-66; Catalytic transfer hydrogenation; Green conditions; Unsaturated alkene compounds

Abstract:Stable Pd nanoparticles (Pd NPs) have been uniformly dispersed and immobilized into the metal-organic framework of UiO-66, Pd/UiO-66, by a facile impregnation reduction method. Pd/UiO-66 retains the integrity of the UiO-66 crystal structure and incorporated with ultrasmall Pd NPs(1.70 +/- 0.32 nm). Using ammonium formate(AF) as a H-donor and water as solvent under green condition, the optimized 1.16 wt% Pd/UiO-66 catalyst exhibits remarkable activity in the catalytic transfer hydrogenation(CTH) of alpha-methylstyrene(AMS) into cumin(achieving 99.6% conversion of AMS and almost full selectivity to cumin with an extremely high turnover frequency value 456.7 h(-1) at 323.15 K). Pd/UiO-66 also show superior catalytic activity in CTH of unsaturated alkene compounds to saturated compounds with excellent stability and recyclability. Furthermore, the as-formed saturated alkanes can be fast and automatic separated easily from the aqueous catalytic media. This study supplies a general method for immobilizing ultrafine Pd nanoparticles into crystalline MOFs and a "green " path for hydrogenation of unsaturated alkene compounds.

Co-author:佟亮亮

First Author:Yafeng Li

Indexed by:Journal paper

Volume:643

Page Number:1

Number of Words:2

ISSN No.:0926-860X

Translation or Not:no

Date of Publication:2022-08-05