Počet záznamů: 1
Effect of Promoters in Co-Mn-Al Mixed Oxide Catalyst on N2O Decomposition
- 1.
SYSNO ASEP 0343774 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Effect of Promoters in Co-Mn-Al Mixed Oxide Catalyst on N2O Decomposition Tvůrce(i) Karásková, K. (CZ)
Obalová, L. (CZ)
Jirátová, Květa (UCHP-M) RID, ORCID, SAI
Kovanda, F. (CZ)Zdroj.dok. Chemical Engineering Journal. - : Elsevier - ISSN 1385-8947
Roč. 160, č. 2 (2010), s. 480-487Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova nitrous oxide ; catalytic decomposition ; promoter effect Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství CEP GA106/09/1664 GA ČR - Grantová agentura ČR CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000279137900012 DOI 10.1016/j.cej.2010.03.058 Anotace Catalytic decomposition of N2O over calcined Co-Mn-Al layered double hydroxide (LDH) modified with slight amount of alkali (Li, Na, K), rare earth (La, Ce), or noble metals (Pd, Pt) was studied. The method of preparation (impregnation, coprecipitation) affected the reducibility of the obtained mixed oxide catalysts but its effect on the surface area (with the exception of a cerium-contained sample) and N2O conversion was less evident. The modification of the Co-Mn-Al mixed oxide with K or Na increased N2O conversion, while no effect or a decrease in the N2O conversion was observed over the other examined catalysts. Alkali metals act as electron promoters; therefore, the differences in catalytic activity may be related to changes of oxygen-transition metal bond strength. The Co-Mn-Al mixed oxides with 1.8 wt% K exhibited a high catalytic activity even under the simultaneous presence of O2, H2O and NOx. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2011
Počet záznamů: 1