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The Role of Template Structure and Synergism between Inorganic and Organic Structure Directing Agents in the Synthesis of UTL Zeolite
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SYSNO ASEP 0343596 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The Role of Template Structure and Synergism between Inorganic and Organic Structure Directing Agents in the Synthesis of UTL Zeolite Tvůrce(i) Shvets, O. V. (UA)
Kasian, N. (UA)
Zukal, Arnošt (UFCH-W) RID
Pinkas, Jiří (UFCH-W) RID, ORCID
Čejka, Jiří (UFCH-W) RID, ORCID, SAIZdroj.dok. Chemistry of Materials. - : American Chemical Society - ISSN 0897-4756
Roč. 22, č. 11 (2010), s. 3482-3495Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova UTL zeolite ; synthesis ; zeolite molecular sietes Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP GA203/08/0604 GA ČR - Grantová agentura ČR GA104/07/0383 GA ČR - Grantová agentura ČR CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000278149300024 DOI 10.1021/cm1006108 Anotace The extra-large-pore germanosilicates with UTL topology have been synthesized using a large variety of spiroazocompounds as structure-directing agents. Synthesis conditions were optimized and zeolites with a high crystallinity degree were obtained with 13 different organic structure-directing agents. The influence of the composition of the reaction mixture and template nature (structure, hydrophilicity/hydrophobicity balance, rigidity, pKa) on the phase selectivity, crystallinity degree, and adsorption properties of zeolites with UTL structure was investigated. Selection criteria of organic molecules as potential structure-directing agents (SDAs) in the synthesis of large-pore and extra-large-pore zeolites from silicate and germanosilicate media are proposed. The optimum synthesis time was determined to be 4−9 days for different SDA and (Si + Ge)/SDA molar ratios. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2011
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