Selective Ethanol Synthesis from Carbon Dioxide ROLES OF RHODIUM CATALYTIC SITES
نویسنده
چکیده
Work on the synthesis of ethanol from carbon dioxide over a rhodiumselenium catalyst i s reported, and related reactions and characterisation studies are briefly reviewed. I n order to inhibit the formation of methane (complete reduction of carbon dioxide) and simultaneously activate carbon-carbon bond formation by the reaction of CH, with carbonyl derivatives, it is necessary to control the active rhodium sites. Based on a study of single crystal rhodium surfaces it is proposed that acetyl and acetate intermediates are formed. Recently it has been discovered that supported RhlTi02, promoted by selenium from inside the rhodium metal sites, is apotential catalyst for ethanol synthesis from carbon dioxide. The action of this catalyst is compared to related studies.
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