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In this paper we show that modification of ceria by loading alumina strongly reduces the oxidation of methanol and the consequent reduction of Ce(IV) to Ce(III) with increase of both the life of the catalysts and their selectivity. The combination of surface techniques (XPS and BET) with structural techniques (XRD) has allowed a good characterisation of the working catalysts. Spectroscopic analyses...
The formation of dimethylcarbonate (DMC) from MeOH and CO2 under [Nb(OMe)5]2 catalysis follows a different route (“acid-plus-base activation” of methanol) with respect to other known catalytic systems such as Sn(IV) and dicyclohexylcarbodiimide (DCC) that promote a “double-base activation”. The reaction intermediates and related transition states obtained from density functional (DFT) calculations...
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