Acidic and catalytic properties of silica modified by iron oxide nanoparticles

被引：10
|
作者：
Rostovshchikova, Tatiana [1 ]
Smirnov, Vladimir [1 ]
Kiseleva, Olga [1 ]
Yushcenko, Valentina [1 ]
Tzodikov, Mark [2 ]
Maksimov, Yurii [3 ]
Suzdalev, Igor [3 ]
Kustov, Leonid [4 ]
Tkachenko, Olga [4 ]
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119991, Russia
[2] RAS, AV Topchiev Petrochem Synth Inst, Moscow 119991, Russia
[3] RAS, NN Semenov Chem Phys Inst, Moscow 119991, Russia
[4] RAS, Zeliskii Inst Organ Chem, Moscow 119991, Russia
来源：
CATALYSIS TODAY | 2010年 / 152卷 / 1-4期
基金：
俄罗斯基础研究基金会;
关键词：
Silica; Iron oxide; Structure; Size; Acidity; Catalysis; Alkylation; BENZYL-CHLORIDE; ZEOLITES; ACETONITRILE; CONVERSIONS; OXIDATION; MOLECULES; MECHANISM; BENZENE;
D O I：
10.1016/j.cattod.2009.10.017
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Relations between the catalyst structure, acid and catalytic properties of two types of silica (silica gel and layer silica) modified by gamma-ferric oxide nanoparticles of a different size (2-4 and 8-10 nm) were studied in the benzene alkylation by benzyl chloride. The catalysts were characterized by means of Mossbauer spectroscopy, temperature programmed NH(3) desorption and diffuse reflectance infrared Fourier transform spectroscopy (DRIFT) using CO and CD(3)CN as test molecules. It was found that the particle size and the silica structure strongly affect the catalytic behavior. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：48 / 53
页数：6
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