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dc.contributor.authorPacultová, Kateřina
dc.contributor.authorKlegová, Anna
dc.contributor.authorKiška, Tomáš
dc.contributor.authorFridrichová, Dagmar
dc.contributor.authorMartaus, Alexandr
dc.contributor.authorRokicińska, Anna
dc.contributor.authorKuśtrowski, Piotr
dc.contributor.authorObalová, Lucie
dc.identifier.citationMaterials Research Bulletin. 2020, vol. 129, art. no. 110892.cs
dc.description.abstractCobalt mixed oxide with cesium promoter was deposited on different ceramic open-cell foams (Al2O3 + SiO2, ZrO2 and SiO2 + Al2O3 + C-graphite, Lanik Ltd., Czech Republic) by wet impregnation method. The catalysts were tested for N2O decomposition and characterized by AAS, XRD, TPR-H-2, FTIR, Raman, XPS, SEM and nitrogen adsorption. The same impregnation procedure resulted in different amounts of deposited Co3O4-Cs on each support and different dispersion of Co3O4 and Cs on the surface. The Al2O3 + SiO2 (Al-Si) based ceramic foam was recognized as the most suitable support. The difference in the catalytic activity of unsupported Co3O4 Cs and Co-Cs/Al-Si could be explained in terms of different dispersion levels of individual components on the support, leading to changes in the Cs/Co surface molar ratio of atoms in close contact and subsequent changes in reducibility. Direct correlation of specific rate constant for N2O decomposition and surface Cs/Co molar ratio was found.cs
dc.relation.ispartofseriesMaterials Research Bulletincs
dc.rights© 2020 Elsevier Ltd. All rights reserved.cs
dc.subjectN2O decompositioncs
dc.subjectcobalt mixed oxidecs
dc.subjectopen-cell foamcs
dc.subjectsupported catalystcs
dc.subjectstructured catalystcs
dc.titleEffect of support on the catalytic activity of Co3O4-Cs deposited on open-cell ceramic foams for N2O decompositioncs
dc.description.sourceWeb of Sciencecs
dc.description.firstpageart. no. 110892cs

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