Hydrogen Incorporation in RuxTi1−xO2 Mixed Oxides Promotes Total Oxidation of Propane

Abstract

A rational synthetic approach is introduced to enable hydrogen insertion into oxides by forming a solid solution of a reducible oxide with a less reducible oxide as exemplified with RuO2 and TiO2 (Ru_x, a mixture of x% RuO2 with (100−x)% TiO2). Hydrogen exposure at 250 °C to Ru_x (Ru_x_250R) results in substantial hydrogen incorporation accompanied by lattice strain that in turn induces pronounced activity variations. Here, we demonstrate that hydrogen incorporation in mixed oxides promotes the oxidation catalysis of propane combustion with Ru_60_250R being the catalytically most active catalyst.

10th Anniversary of Inorganics: Inorganic Materials

“…Regarding the reactivity of inorganic compounds, Breza et al (Contribution 11) investigated the oxidation mechanism involving a mixture of non-labelled and 15 N-labelled hydrazine in an aqueous solution to N 2 molecules, identifying the formation of N 4 H 6 intermediate molecules, which decompose following a complex pathway involving different energetically favoured reactions.…”