Characterization and catalytic properties of nickel-substituted hexagonal mesoporous silica prepared by microwave-hydrothermal method

被引：2

作者：

Bachari, K. ^{[1
]}

Guerroudj, R. M. ^{[1
]}

机构：

[1] Ctr Rech Sci & Tech Anal Physicochim CRAPC, Alger Rp 16004, Alger, Algeria

来源：

COMPTES RENDUS CHIMIE | 2012年 / 15卷 / 04期

关键词：

ICP; FT-IR; Temperature programmed desorption (TPD) of pyridine; Acetylation; Nickel-mesoporous materials; FRIEDEL-CRAFTS ACYLATION; MOLECULAR-SIEVES; SOLID CATALYSTS; ZEOLITE; ACETYLATION; MORPHOLOGY; ANHYDRIDE; ANISOLE;

D O I：

10.1016/j.crci.2011.12.007

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The liquid phase of acetylation of 1,2-dimethoxybenzene with acetic anhydride has been investigated over a series of acid nickel-mesoporous materials (Ni-MCM-41) synthesized by the microwave irradiation method with different Si/Ni ratios (Si/Ni = 80, 50, 10) and characterized by several spectroscopic techniques such as: N-2 physical adsorption, ICP, XRD, TEM, FT-IR, and a temperature programmed desorption (TPD) of pyridine. In fact, the catalyst Ni-MCM-41 (10) showed better performance in the acid-catalyzed acetylation of 1,2-dimethoxybenzene employing acetic anhydride as an acylating agent. Furthermore, the kinetics of the acetylation of 1,2-dimethoxybenzene over these catalysts have also been investigated. (c) 2012 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.

引用

页码：317 / 323

页数：7

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