Authors: Outi Parkkima Ana SilvestreAlbero Joaquin SilvestreAlbero Maarit Karppinen
Publish Date: 2014/10/31
Volume: 145, Issue: 2, Pages: 576-582
Abstract
Here we present oxygennonstoichiometric transition metal oxides as highly prominent candidates to catalyze the industrially important oxidation reactions of hydrocarbons when hydrogen peroxide is employed as an environmentally benign oxidant The proofofconcept data are revealed for the complex cobalt oxide YBaCo4O7+δ 0 δ 15 in the oxidation process of cyclohexene In the 2h reaction experiments YBaCo4O7+δ was found to be significantly more active 60 conversion than the commercial TiO2 catalyst 20 even though its surface area was less than one tenth of that of TiO2 In the 7h experiments with YBaCo4O7+δ 100 conversion of cyclohexene was achieved Immersion calorimetry measurements showed that the high catalytic activity may be ascribed to the exceptional ability of YBaCo4O7+δ to dissociate H2O2 and release active oxygen to the oxidation reaction
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