Nickel(II) complex anchored on MCM-41 for the epoxidation of styrene by oxygen

被引：12
|
作者：
Yang Gang [1 ]
Chen Xing [1 ]
Wang Xiaoli [1 ]
Xing Weihong [1 ]
Xu Nanping [1 ]
机构：
[1] Nanjing Univ Technol, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2013年 / 34卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Nickel Schiff base complex; MCM-41 molecular sieve; Styrene epoxidation; Molecular oxygen; SCHIFF-BASE COMPLEX; MESOPOROUS MOLECULAR-SIEVES; CATALYTIC EPOXIDATION; ALKENE EPOXIDATION; OXIDATION; OLEFINS; SURFACE; SILICA; SBA-15; ALCOHOLS;
D O I：
10.1016/S1872-2067(12)60568-3
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A heterogeneous catalyst, MCM-41-Ni, was synthesized by anchoring a nickel(II) Schiff base complex onto amino-modified MCM-41. The catalyst was characterized by small angle X-ray diffraction, nitrogen adsorption, infrared spectroscopy, thermal gravimetric analysis, inductively coupled plasma and C, H, N elemental analysis, and transmission electron microscopy. MCM-41-Ni showed excellent catalytic activity for the epoxidation of styrene with O-2 as oxidant with high styrene conversion (95.2%) and epoxide selectivity (66.7%). The influence of reaction temperature, catalyst amount, solvent, and reaction time was studied. MCM-41-Ni showed good recyclability and can be reused four times. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：1326 / 1332
页数：7
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