Novel approach towards Al-rich AFI for catalytic application

Autor:	Martin Hartmann, Maksym Opanasenko, Yamini S. Avadhut, Yong Zhou, Jiří Čejka, Naděžda Žilková, Mariya Shamzhy
Rok vydání:	2019
Předmět:	010405 organic chemistry Chemistry Process Chemistry and Technology Isopropyl alcohol Microporous material Alkylation 010402 general chemistry 01 natural sciences Toluene Catalysis 0104 chemical sciences chemistry.chemical_compound Adsorption Zeolite Selectivity Nuclear chemistry
Zdroj:	Applied Catalysis A: General. 577:62-68
ISSN:	0926-860X
DOI:	10.1016/j.apcata.2019.03.015
Popis:	A new germanosilicate structural analogue of AFI zeolite (Ge-AFI) was hydrothermally synthesized. One- and two-step alumination of the Ge-AFI zeolites were used to modify their structure and acidic properties traced using XRD, N2 adsorption, ICP-OES, 27Al NMR, and FTIR spectroscopy. Two-step aluminated sample (deGe-Al-AFI) provided a higher Al content, stronger acid sites and a higher micropore volume than one-step aluminated sample (Al-AFI). Extensive evaluation of the catalytic performance of these AFI zeolites compared with reference conventional zeolite catalysts for alkylation of toluene with isopropyl alcohol showed that deGe-Al-AFI exhibited relatively high toluene conversion and selectivity to valuable p-cymene due to the optimized textural and acidic properties.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5a1612db2a1b8c40bbad3a9123f4a36b https://doi.org/10.1016/j.apcata.2019.03.015 Zobrazit plný text záznamu Full Text from ScienceDirect