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Ionic‐Liquid‐Modified Porous Au/CeMnO x Nanorods for Methyl Methacrylate (MMA) Synthesis via Direct Oxidative Esterification
Author(s) -
Tian Yun,
Li Yuchao,
Zuo Cuncun,
Yin Defeng,
Wang Ling,
Zheng Yanxia,
Huang Haofei,
Fu Zhongjun,
Wang Ming
Publication year - 2019
Publication title -
chemnanomat
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.201900408
Subject(s) - catalysis , methacrolein , nanorod , ionic liquid , benzaldehyde , materials science , methyl methacrylate , methanol , x ray photoelectron spectroscopy , microstructure , chemical engineering , porosity , methacrylate , chemistry , polymer chemistry , organic chemistry , nanotechnology , composite material , polymerization , polymer , methacrylic acid , engineering
Abstract Porous MnCeO x solid solutions nanorods (PN‐MnCeO x ) with different pore sizes were prepared using different carbon chain lengths ionic liquids (C 10 mimCl, C 12 mimCl and C 14 mimCl). Series of novel catalysts with nano‐Au supported on the PN‐MnCeOx, were synthesized and applied to oxidative esterification of aldehydes (benzaldehyde derivatives or methacrolein – MAL) to esters. Catalytic performance was evaluated in batch reactor and the relatively optimum catalyst was screened out. Kinds of characterization methods, such as XRD, TEM, XPS and BET, were applied to analyze crystal plane, microstructure, specific surface area, and porous structure of the catalysts and the structure‐activity relationship could be reasonably explained. The cyclic stability of the catalyst was also tested more than 7 times using MAL and methanol for methyl methacrylate synthesis via one step oxidative esterification.