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Kinetic studies of CO2dissociation on supported Ni catalysts
Authors:Toshihiko Osaki and Toshiaki Mori
Institution:(1) National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan;(2) Department of Materials Science and Technology, Faculty of Science and Technology, Hirosaki University, Bunkyo-cho, Hirosaki 036-8561, Japan
Abstract:Summary In order to investigate the kinetics of CO2dissociation on supported nickel catalysts, a novel technique, which can give the surface reaction rate constants with no information on the number of active sites, was developed. It was revealed that CO2dissociation was more enhanced on TiO2support than on other metal oxide ones. The activity pattern and activation energies were in good agreement with those obtained by a conventional pulse technique using the number of active sites, suggesting the validity of the present technique for investigating the kinetics of the surface reaction.</o:p>
Keywords:kinetics  oxygen  transition metals  CO2 hydrogenation  nickel  CO  CO2 reforming  Surface reaction  CO2 adsorption  CO2 dissociation
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