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Sr-doped calcium and barium manganites as catalysts in heterogeneous oxidation of volatile organic compounds

Žužić, Andreja; Car, Filip; Macan, Jelena; Tomašić, Vesna; Gajović, Andreja (2023) Sr-doped calcium and barium manganites as catalysts in heterogeneous oxidation of volatile organic compounds. Catalysis communications, 178 . ISSN 1566-7367

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Sr-doped CaMnO3 and BaMnO3 were prepared by autocombustion (CNA) and coprecipitation and investigated as catalysts for catalytic oxidation of benzene, toluene, ethylbenzene and o-xylene mixture in a fixed-bed reactor. Ethylbenzene and o-xylene were completely removed by all prepared catalysts. Toluene was completely removed by BaMnO3 and Ba0.5Sr0.5MnO3 catalysts prepared by CNA synthesis, while conversions of ~98% or higher were obtained for all the other prepared catalysts. The highest benzene conversion of 86.43% at 723 K was obtained for the Ba0.7Sr0.3MnO3 catalyst prepared by CNA synthesis. The differences in catalytic activities can be ascribed to Sr-doping, oxygen nonstoichiometry and morphological differences.

Item Type: Article
Uncontrolled Keywords: autocombustion synthesis ; barium manganites ; calcium manganites ; catalytic oxidation ; coprecipitation ; volatile organic compounds
Subjects: TECHNICAL SCIENCES > Chemical Engineering
Divisions: Division of Materials Physics
Project titleProject leaderProject codeProject type
Nanokompoziti s perovskitima za fotovoltaike, fotokatalizu i senzorikuGajović, AndrejaIP-2018-01-5246HRZZ
Intenzifikacija fotokatalitičkih i katalitičkih procesa za obradu otpadnih voda i otpadnih plinovaTomašić, VesnaIP-2018-01-8669HRZZ
Virtulab – Integrirani laboratorij za primarne i sekundarne sirovineBorojević Šoštarić, Sibila; Šantek, Božidar; Rogošić, Marko; Petrović, Igor; Zovko Brodarac, ZdenkaKK.
Depositing User: Andreja Gajović
Date Deposited: 06 Jul 2023 10:58
DOI: 10.1016/j.catcom.2023.106677

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