Počet záznamů: 1
Modification of Co-Mn-Al Mixed Oxide with Potassium and Its Effect on Deep Oxidation of VOC
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SYSNO ASEP 0327237 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Modification of Co-Mn-Al Mixed Oxide with Potassium and Its Effect on Deep Oxidation of VOC Překlad názvu Modifikace směsných oxidů Co-Mn-Al draslíkem a jeho vliv na úplnou oxidaci VOC Tvůrce(i) Jirátová, Květa (UCHP-M) RID, ORCID, SAI
Gaálová, Jana (UCHP-M) RID, SAI, ORCID
Klempa, Jan (UCHP-M)
Grygar, Tomáš (UACH-T)
Bastl, Zdeněk (UFCH-W) RID, ORCID
Kovanda, F. (CZ)Zdroj.dok. Applied Catalysis A - General. - : ELSEVIER SCIENCE BV - ISSN 0926-860X
Roč. 361, 1-2 (2009), s. 106-116Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova mixed oxide catalysts ; VOC total oxidation ; potassium promoter Vědní obor RIV CC - Organická chemie CEP GA104/07/1400 GA ČR - Grantová agentura ČR CEZ AV0Z40720504 - UCHP-M (2005-2011) AV0Z40320502 - UACH-T (2005-2011) AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000267092800015 DOI 10.1016/j.apcata.2009.04.004 Anotace Catalytic activity of the Co4MnAl mixed oxide catalyst modified with various amounts of potassium was examined in total oxidation of toluene and ethanol. The prepared catalysts were characterized by AAS, XRD, porous structure, TPR, TPD, voltammetry, Raman spectroscopy and XPS. The highest conversion in toluene oxidation was achieved with catalyst containing ca 1wt % K, while in ethanol oxidation the catalysts activity gradually increased with increasing potassium content up to 3 wt % K, but also increased acetaldehyde concentration. Any reaction byproducts were not observed in toluene oxidation. Catalytic activity in ethanol oxidation is connected with the presence of MnO2 in the catalyst. XPS spectroscopy proved a correlation between concentration surface oxygen and activity in ethanol oxidation. According to XRD and voltammetry measurements, the catalysts with high concentration of potassium comprised some amount of other oxide phase of birnessite type. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2010
Počet záznamů: 1