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Gold and Ceria as Catalysts for VOC Abatement: A Review

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    0543555 - ÚCHP 2022 RIV CH eng J - Journal Article
    Gaálová, Jana - Topka, Pavel
    Gold and Ceria as Catalysts for VOC Abatement: A Review.
    Catalysts. Roč. 11, č. 7 (2021), č. článku 789. E-ISSN 2073-4344
    R&D Projects: GA TA ČR(CZ) TN01000048; GA ČR(CZ) GJ19-08153Y
    Institutional support: RVO:67985858
    Keywords : volatile organic compounds * noble metal catalysts * VOC total oxidation
    Subject RIV: CI - Industrial Chemistry, Chemical Engineering
    OBOR OECD: Chemical process engineering
    Impact factor: 4.146, year: 2020

    Due to its excellent oxygen storage capacity, ceria is a well-known oxidation catalyst. However, its performance in the oxidation of volatile organic compounds can be improved by the introduction of gold. Depending on the type of VOC to be oxidized, the surface of gold nanoparticles and the gold/ceria interface may contribute to enhanced activity and/or selectivity. Choosing a proper preparation method is crucial to obtain optimal gold particle size. Deposition–precipitation was found to be more suitable than coprecipitation or impregnation. For industrial applications, monolithic catalysts are needed to minimize the pressure drop in the reactor and reduce mass and
    heat transfer limitations. In addition to the approach used with powder catalysts, the method employed to introduce gold in/on the washcoat has to be considered.
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