Optimalization of ceramic-based noble metal-free catalysts for CO oxidation reactions

Boldizsár, Tamás and Mucsi, Róbert and Szamosvölgyi, Ákos and Szenti, Imre and Halasi, Gyula and Sápi, András and Kukovecz, Ákos and Kónya, Zoltán (2022) Optimalization of ceramic-based noble metal-free catalysts for CO oxidation reactions. REACTION KINETICS MECHANISMS AND CATALYSIS, 135 (2). pp. 575-587. ISSN 1878-5190

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Abstract

In this study ceramic supported noble metal-free catalysts promoting the oxidation of CO were examined. In the course of our work several non-noble metal containing catalysts were prepared with different metal content by the well-known wet impreg- nation method and their catalytic activities were analyzed by gas chromatography (GC) experiments in CO oxidation reaction. In addition to GC measurements, X-ray diffraction, scanning electron microscopy, BET and X-ray photoelectron spectros- copy tests were also performed on our samples. During our work we found that cobalt-loaded silica-alumina-based ceramic supported catalyst proved to be the best in CO oxidation due to the high activity and durability with comparable activity with Pt-loaded counterpart.

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