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Performance of Platinum and Gold Catalysts Supported on Ceria-Zirconia Mixed Oxide in the Oxidation of Chlorobenzene
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SYSNO ASEP 0445390 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Performance of Platinum and Gold Catalysts Supported on Ceria-Zirconia Mixed Oxide in the Oxidation of Chlorobenzene Tvůrce(i) Topka, Pavel (UCHP-M) RID, ORCID, SAI
Delaigle, R. (BE)
Kaluža, Luděk (UCHP-M) RID, ORCID, SAI
Gaigneaux, E.M. (BE)Zdroj.dok. Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 253, SEP 15 (2015), s. 172-177Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova oxidation ; chlorobenzene ; zirconia Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství CEP GP13-24186P GA ČR - Grantová agentura ČR Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000355682900021 EID SCOPUS 84930761781 DOI 10.1016/j.cattod.2015.02.032 Anotace Monometallic noble metal catalysts supported on ceria-zirconia mixed oxide were prepared by impregnation and tested in the oxidation of chlorobenzene (100 ppm in air). With the pure ceria-zirconia support, 27 % conversion was achieved at 400 °C and only incomplete oxidation to carbon monoxide was evidenced. The introduction of gold and especially platinum significantly improved the efficiency of the catalyst. The catalytic performance was increased with increasing noble metal content. The catalyst with 1 wt. % of Pt achieved 97 % conversion of chlorobenzene already at 350 °C and complete oxidation to CO2 with only traces of by-products was detected. Platinum catalysts were more efficient than gold ones, which was ascribed to their superior redox properties. On the other hand, the lower acidity of platinum catalysts was not detrimental for their catalytic performance. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2016
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