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Alkali metal cation doped Al-SBA-15 for carbon dioxide adsorption
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SYSNO ASEP 0356990 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Alkali metal cation doped Al-SBA-15 for carbon dioxide adsorption Tvůrce(i) Zukal, Arnošt (UFCH-W) RID
Mayerová, Jana (UFCH-W)
Čejka, Jiří (UFCH-W) RID, ORCID, SAIZdroj.dok. Physical Chemistry Chemical Physics. - : Royal Society of Chemistry - ISSN 1463-9076
Roč. 12, č. 20 (2010), s. 5240-5247Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova mesoporous molecular sieves ; zeolites ; CO2 adsorption Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP GA203/08/0604 GA ČR - Grantová agentura ČR CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000277689500007 DOI 10.1039/b924938a Anotace Mesoporous aluminosilicate adsorbents for carbon dioxide were prepared by the grafting of aluminium into SBA-15 silica using an aqueous solution of aluminium chlorohydrate. As the ion exchange sites are primarily associated with the presence of tetrahedrally coordinated aluminium, extra-framework aluminium on the SBA-15 surface was inserted into the silica matrix by a treatment with an aqueous solution of NH4OH. Synthesized mesoporous aluminosilicate preserving all the characteristic features of a mesoporous molecular sieve was finally modified by the alkali metal cation exchange. To examine carbon dioxide adsorption on prepared materials, adsorption isotherms in the temperature range from 0 degrees C to 60 degrees C were measured. Based on the known temperature dependence of adsorption isotherms, isosteric adsorption heats giving information on the surface energetics of CO2 adsorption were calculated and discussed. 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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