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A Catalyst of Pd@MIL‐101@SGO Catalyzes Epoxidation and Hydroxymethoxylation Tandem Reactions of Styrene
Author(s) -
Tang Hong,
Zhou MeiLi,
Li Xin,
Zhang YuYang,
Han ZhengBo
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202000111
Subject(s) - catalysis , brønsted–lowry acid–base theory , styrene oxide , bifunctional , physisorption , styrene , oxide , nanoparticle , palladium , chemistry , heterogeneous catalysis , graphene , materials science , aqueous solution , nuclear chemistry , inorganic chemistry , organic chemistry , nanotechnology , copolymer , polymer
Brönsted acid and metal nanoparticles are important catalytic functional groups. In this work, a bifunctional heterogeneous catalyst with both strong Brönsted acid and metal nanoparticles was prepared. First Brönsted acid groups were obtained by sulfonating graphene oxide, next metal organic frameworks MIL‐101 (Cr) grew on sulfonated graphene oxide (SGO), then palladium nanoparticles (NPs) were encapsulated in MIL‐101@SGO composites. The catalyst was characterized by a variety of different techniques including XRD, SEM, TEM, EDS, FT‐IR, TGA, and nitrogen physisorption measurements. Tandem heterogeneous catalysis of Pd@MIL‐101@SGO was investigated for the one‐pot direct conversion of styrene into β‐alkoxy alcohol. The catalyst retained high catalytic activity after 5 times of reuses in aqueous solutions. No loss of crystal structure was detected by PXRD and no leakage of Pd was detected by ICP‐AES. Therefore, Pd@MIL‐101@SGO proved to be an effective recyclable heterogeneous catalyst for synthesizing β‐alkoxy alcohol and exhibited potential application in industry.