ISSN:
1572-879X
Keywords:
Titania promoted rhodium
;
CO2 hydrogenation
;
acetone hydrogenation
;
CO hydrogenation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The effects of submonolayer deposits of titania on the hydrogenation of CO2, acetone, and CO on a Rh foil have been investigated. Titania has been found to promote all three of the hydrogenation reactions, with each reaction exhibiting a maximum rate at a titania coverage of 0.5 ML. The maximum rate for CO2 hydrogenation is 15 times that of the bare Rh surface. Acetone hydrogenation shows a 6-fold rate enhancement, while CO displays a 3-fold increase. Changes in the selectivities for each reaction are also observed upon titania promotion. The effects of titania on these reactions are attributed to an interaction between C-O bonds and Ti3+ ions located at the perimeter of titania islands.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00765181
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