Methanation of carbon dioxide over Ru/Titania at room temperature: explorations for a photoassisted catalytic reaction
作者： J. Melsheimer , W. Guo , D. Ziegler , M. Wesemann , R. Schl�gl
DOI: 10.1007/BF00764081
关键词: Methanation 、 Catalysis 、 X-ray photoelectron spectroscopy 、 Irradiation 、 Visible spectrum 、 Chemistry 、 Calcination 、 Transition metal 、 Heterogeneous catalysis 、 Photochemistry
摘要: The methanation of CO2 has been investigated over a special Ru/TiO2 catalyst suggested by Thampi, Kiwi and Graetzel [4]. This paper deals with the analysis material investigation reported photoenhancement activity. is characterised in situ UV-VIS spectroscopy XPS. Conversion experiments at atmospheric pressure were carried out without UV light irradiation. irradiation increases conversion significantly. From various it can be shown, however, that this effect due to thermal does not involve an intrinsic photochemical step. Localised Ti3+ states sensitise support convert visible into heat resulting observed increase conversion.
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