Počet záznamů: 1
Catalytic Activity of Cobalt Grafted on Ordered Mesoporous Silica Materials in N2O Decomposition and CO Oxidation.
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SYSNO ASEP 0474676 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Catalytic Activity of Cobalt Grafted on Ordered Mesoporous Silica Materials in N2O Decomposition and CO Oxidation. Tvůrce(i) Kuboňová, L. (CZ)
Peikertová, P. (CZ)
Mamulová Kutláková, K. (CZ)
Jirátová, Květa (UCHP-M) RID, ORCID, SAI
Słowik, G. (PL)
Obalová, L. (CZ)
Cool, P. (BE)Zdroj.dok. Molecular Catalysis. - : Elsevier - ISSN 2468-8231
Roč. 437, AUG 2017 (2017), s. 57-72Poč.str. 16 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova mesoporous ordered silica ; cobalt ; N2O decomposition Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství Obor OECD Chemical process engineering CEP GA14-13750S GA ČR - Grantová agentura ČR Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000403992800007 EID SCOPUS 85029599019 DOI 10.1016/j.mcat.2017.04.037 Anotace Three different ordered mesoporous silica materials, such as MCM-41, Al incorporated into the silica framework MCM-41 (mass ratio Si/Al = 9) and SBA-15, were prepared. Furthermore, aluminum was grafted on the surface of MCM-41 (mass ratio Si/Al = 16) and SBA-15 (mass ratio Si/Al = 23) by the molecular designed dispersion (MDD) method. In a next step, cobalt (Co = 10–12 wt%), as an active metal for redox reactions, was introduced by the MDD technique. Catalytic properties were evaluated for two model reactions: N2O decomposition and CO oxidation. All prepared catalysts showed poor activity in the reaction of N2O decomposition and the use of reducing agent (carbon monoxide) improved it only little. Contrary to this, all catalysts were signifi-cantly more active for CO oxidation by oxygen. The highest activity was reached over the SBA + Co catalyst which is proposed to be due to the smallest size of tetrahedral Co(II) species on SBA-15 silica support. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2018
Počet záznamů: 1