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Effect of Sr substitution on catalytic activity of La1-xSrxMnO3 (0 <= x <= 0.8) perovskite-type oxides for catalytic decomposition of hydrogen peroxide

Yang, HG; Zhang, T; Tian, HJ; Tang, JW; Xu, DZ; Yang, WS; Lin, LW; (2001) Effect of Sr substitution on catalytic activity of La1-xSrxMnO3 (0 <= x <= 0.8) perovskite-type oxides for catalytic decomposition of hydrogen peroxide. REACT KINET CATAL L , 73 (2) 311 - 316.

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Abstract

La1-xSrxMnO3 (0 less than or equal tox less than or equal to0.8) perovskite-type oxides were synthesized by the combined EDTA-citrate complexing method and their catalytic activity for the decomposition of hydrogen peroxide was investigated. Hydrogen peroxide decomposition was observed as a first-order reaction on these catalysts. With the increase of Sr substitution, the catalytic activity increased accordingly. Through analysis of the kinetic results, the compensation effect was found for these perovskites and Mn4+ ions were ascribed as the active sites of hydrogen peroxide decomposition.

Type: Article
Title: Effect of Sr substitution on catalytic activity of La1-xSrxMnO3 (0 <= x <= 0.8) perovskite-type oxides for catalytic decomposition of hydrogen peroxide
Keywords: perovskite, substitution, hydrogen peroxide, decomposition, H2O2 DECOMPOSITION, OXIDATION
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
URI: http://discovery.ucl.ac.uk/id/eprint/171965
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