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Effect of Potassium in Calcined Co-Mn-Al Layered Double Hydroxide on the Catalytic Decomposition of N2O
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SYSNO ASEP 0327239 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Effect of Potassium in Calcined Co-Mn-Al Layered Double Hydroxide on the Catalytic Decomposition of N2O Title Vliv draslíku v kalcinovaném Co-Mn-Al LDH na katalytický rozklad N2O Author(s) Obalová, L. (CZ)
Karásková, K. (CZ)
Jirátová, Květa (UCHP-M) RID, ORCID, SAI
Kovanda, F. (CZ)Source Title Applied Catalysis B - Environmental. - : Elsevier - ISSN 0926-3373
Roč. 90, 1-2 (2009), s. 132-140Number of pages 9 s. Language eng - English Country NL - Netherlands Keywords nitrous oxide ; catalytic decomposition ; potassium promoter Subject RIV CC - Organic Chemistry CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000267380100017 DOI 10.1016/j.apcatb.2009.03.002 Annotation A series of catalysts was prepared by thermal treatment (500 °C) of the Co-Mn-Al LDH doped with various amount of potassium (0 - 3 wt%). Spinel-like mixed oxides obtained by the calcination of the coprecipitated LDH precursors were characterized by means of chemical analysis, XRD, XPS, BET surface area measurements, TPR, TPD- CO2 and NH3, water adsorption measurements and tested for N2O decomposition to determine the effect of K addition on the catalytic activity in the presence of O2, NOx and H2O. Optimal K content of ca. 0.9 wt% was found to be necessary to achieve a high catalytic activity in the presence of O2 and H2O, while the non-modified Co-Mn-Al mixed oxide was the most active one in the presence of oxygen and NOx. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2010
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