An infrared study of the oxidation of carbon monoxide over supported rhodium catalysts

✍ Scribed by C.H. Dai; S.D. Worley

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 433 KB
• Volume: 114
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(85)80915-5

✦ Synopsis

The reaction of carbon monoxide and oxygen over supported rhodium films has been studied using infrared spectroscopy. The focus of the work was the reactivity of the various CO/Rh/X (X = Ala 03, SiOa , TiOz) surface states for supported catalysts having high and low Rh loading. Under the reaction conditions the "linear CO" species was the most stable toward oxidation, but this could have been a result of an oxidized Rh surface. A new CO/Rh surface species has been proposed which exhibits an infrared band at 2000 cm-l for a 0.5% Rh/TiOa film. This species is believed to be a bridged carbonyl between Rh'+and the TiOa support