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Co-Mn mixed oxides prepared by magnetron sputtering on meshes as catalysts for oxidation of organic compounds.

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    0519724 - ÚCHP 2020 RIV DE eng C - Konferenční příspěvek (zahraniční konf.)
    Jirátová, Květa - Balabánová, Jana - Koštejn, Martin - Topka, Pavel - Perekrestov, Roman - Kšírová, Petra - Čada, Martin - Hubička, Zdeněk - Dvořáková, M. - Kovanda, F.
    Co-Mn mixed oxides prepared by magnetron sputtering on meshes as catalysts for oxidation of organic compounds.
    Programme. Frankfurt am Main: DECHEMA e.V., 2019. ISBN N.
    [European Congress on Catalysis, EuropaCat 2019 /14./. Aachen (DE), 18.08.2019-23.08.2019]
    Grant CEP: GA ČR GA17-08389S
    Institucionální podpora: RVO:67985858 ; RVO:68378271
    Klíčová slova: catalysts * Co-Mo mixed oxides * oxidation reactions
    Kód oboru RIV: CI - Průmyslová chemie a chemické inženýrství; CF - Fyzikální chemie a teoretická chemie (FZU-D)
    Obor OECD: Chemical process engineering; Physical chemistry (FZU-D)
    http://hdl.handle.net/11104/0304718

    Catalysts in the form of meshes possess a lot of advantages in their using in catalytic reac-tors: a low pressure drop and good heat transfer. Oxides of Co and Mn show high catalytic activity in various oxidation reactions. Catalysts in the present study were prepared as follows: Stainless steel meshes used as supports were coated with thin CO3O4 film by RF magnetron sputtering and further Co3O4 layer by subsequent electrochemical deposition followed by heating. The meshes with deposited Co3O4 were then coated with additional MnO (samples A-C) or Co-Mn mixed oxide (Co:Mn molar ratio of 1:3, samples D-F) thin films of various thickness (approximately 100, 200, and 300 nm) by RF magnetron sputter-ing and heated at 500 °C in air. The structured Co-Mn oxide catalysts with various Mn content were examined by XRD, SEM, FTIR, XPS, and H2-TPR, tested in the gas-phase oxidation of model organic compound (ethanol) and compared with pelletized commercial Co-Mn-AI mixed oxide catalyst (Astin 2-100, Czech Republic, Co:Mn:AI molar ratio of 4:1:1).
    Trvalý link: http://hdl.handle.net/11104/0304718
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