Adsorption of CH3 and its reactions with CO2 over TiO2

被引：17

作者：

Rasko, J

Solymosi, F

机构：

[1] Attila Jozsef Univ, Inst Solid State & Radiochem, H-6701 Szeged, Hungary

[2] Hungarian Acad Sci, React Kinet Res Grp, H-6701 Szeged, Hungary

来源：

CATALYSIS LETTERS | 1998年 / 54卷 / 1-2期

关键词：

adsorption of CH3 on titania; decomposition of adsorbed CH3; reaction of adsorbed CH3 with CO2; formation of CH3O; adsorption of methane on activated titania; use of FTIR combined with mass spectrometry;

D O I：

10.1023/A:1019084006952

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：

The adsorption, decomposition of CH3 and its reactions with CO2 were followed by means of Fourier transform infrared spectroscopy combined with mass spectrometry. Methyl radicals were produced by the pyrolysis of azomethane. Absorption bands, observed at room temperature adsorption, were attributed to adsorbed CH3 and CH3O species. The decomposition of adsorbed CH3 in vacuum started above 400 K and was accelerated by CO2. In the study of the interaction of methane with titania, activated in different ways, we found no convincing spectroscopic evidence for the activation of methane at 300 K.

引用

页码：49 / 54

页数：6

共 37 条

[1] OXYGEN IN CATALYSIS ON TRANSITION-METAL OXIDES [J].