Transesterification of dimethyl oxalate with phenol over nitrogen-doped nanoporous carbon materials

被引:40
|
作者
Yuan, Xiaoling [1 ]
Zhang, Min [1 ]
Chen, Xiaodong [2 ]
An, Nihong [1 ]
Liu, Gang [1 ]
Liu, Yan [1 ]
Zhang, Wenxiang [1 ]
Yan, Wenfu [2 ]
Jia, Mingjun [1 ]
机构
[1] Jilin Univ, Coll Chem, State Key Lab Theoret & Computat Chem, Changchun 130021, Peoples R China
[2] Jilin Univ, Coll Chem, State Key Lab Inorgan Synth & Preparat Chem, Changchun 130012, Peoples R China
基金
中国国家自然科学基金;
关键词
Nitrogen-doped carbon; Transesterification; Dimethyl oxalate; Phenol; ORDERED MESOPOROUS CARBON; CATALYTIC-ACTIVITY; KNOEVENAGEL CONDENSATION; SURFACE-AREA; NITRIDE; ACTIVATION; NANOTUBES; TIO2/SIO2; METHANOL; TITANIA;
D O I
10.1016/j.apcata.2012.06.052
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A series of nitrogen-doped nanoporous carbon (NNC) materials were prepared by directly carbonizing sol-gel composites containing aluminum phosphate, citric acid and hexamethylene tetramine (HMT). The structure and surface properties of these NNC materials were characterized by means of elemental analysis, N-2 adsorption, X-ray powder diffraction (XRD), scanning electron microscope (SEM), high-resolution transmission electron microscopy (TEM), Fourier transform infrared spectra (FT-IR), and X-ray photoelectron spectra (XPS). Besides possessing various oxygen-containing groups, these NNC materials also contain different types of nitrogen-containing groups, including pyridinic-N, pyrrolic-N and quaternary-N groups. The resulting NNC materials are highly active and selective heterogeneous catalysts for the transesterification of dimethyl oxalate (DMO) with phenol to produce methyl phenyl oxalate (MPO) and diphenyl oxalate (DPO), and can be easily recycled by simple filtration. The presence of suitable surface basic sites should be mainly responsible for the excellent catalytic performance of NNC materials in the transesterification reaction. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:149 / 155
页数:7
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