Interplay between surface chemistry and performance of rutile-type catalysts for halogen production.

ABSTRACT: Catalytic HBr oxidation is an integral step in the bromine-mediated functionalisation of alkanes to valuable chemicals. This study establishes the relationships between the mechanism of HBr oxidation over rutile-type oxides (RuO₂, IrO₂, TiO₂) and their apparent catalytic performance. Comparison with the well-studied HCl oxidation revealed distinct differences in surface chemistry between HBr and HCl oxidation that impact the stability and activity of the catalysts. The kinetic fingerprints of both oxidation reactions over the three rutile-type oxides investigated are compared using temporal analysis of products, which substantiates the energy profiles derived from density functional theory. The quantitative determination of the halogen uptake under opera

SUBMITTER: Moser M 

PROVIDER: S-EPMC6004776 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature