Abstract
The support utilized to disperse Group VIII metals has been shown to have an enormous impact on turnover frequencies and selectivities in the CO hydrogenation reaction over certain catalysts. This has been attributed to a Metal-Support Interaction (MSI), with this author having proposed the creation of new active sites in the interfacial region to explain this behavior. The principal feature of this model is the interaction of the carbonyl oxygen atom with sites such as O vacancies or Ti 3+ cations on the nonstoichiometric titania surface. This model has been tested further to determine if other carbonyl bonds can also be activated, with the selective intramolecular hydrogenation of carbonyl bonds, rather than CC double bonds or aromatic bonds, being the ultimate goal. Results from the author's laboratory are reviewed.
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