Abstract
The atmospheric hydroformylations of ethylene and propylene were investigated over SiO2-supported Rh4(CO)12, Co2(CO)8, Rh2Co2(CO)12 and RhCo3(CO)12-derived catalysts. The bimetal cluster-derived catalysts showed excellent activities for the formation of oxygenates. In situ IR study on partially dehydroxylated SiO2-supported RhCo3(CO)12 suggested that the bimetal cluster framework may be preserved after decarbonylation under H2 at 623 K and may be recarbonylated at room temperature. A strong physisorption of RhCo3 (CO)12 on SiO2 is proposed, due to a nucleophilic attack of surface oxygen on the Co atoms, which promotes a metal-support interaction and thus stabilizes the bimetal cluster framework. A subcarbonyl bimetal cluster is thought to be the actual catalytic species on the surface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
