Mordenite nanorods and nanosheets prepared in presence of gemini type surfactants

0517295 - ÚFCH JH 2020 RIV NL eng J - Článek v odborném periodiku
Shvets, O. V. - Konysheva, K. - Shamzhy, M. - Opanasenko, M. - Yaremov, P. S. - Xiao, Ch. - Zou, X. - Čejka, Jiří
Mordenite nanorods and nanosheets prepared in presence of gemini type surfactants.
Catalysis Today. Roč. 324, MARCH 2019 (2019), s. 115-122. ISSN 0920-5861. E-ISSN 1873-4308
Grant CEP: GA ČR GBP106/12/G015
Institucionální podpora: RVO:61388955
Klíčová slova: mfi zeolite nanosheets * one-pot synthesis * hierarchical mordenite * catalytic behavior * external acidity * hydroisomerization * dealumination * performance * selectivity * benzene
Obor OECD: Physical chemistry
Impakt faktor: 5.825, rok: 2019
Způsob publikování: Omezený přístup

The influence of synthesis parameters (e.g. Si/Al ratio, pH of the reaction mixture, structure of Gemini-type surfactant) on the phase selectivity of nanocrystalline MOR formation was studied. The nature of organic structure-directing cation (i.e. charge, size) was found as a decisive factor controlling morphology of MOR nanocrystals. Fabricated nanocrystalline MOR zeolites showed enhanced textural characteristics (BET area, total pore volume) and higher catalytic activity (TOF = 42-45 vs. 15 h(-1)) in acid-catalyzed annulation reaction of 2-naphtol with methylbut-3-en-2-ol when compared to commercial microcrystalline MOR zeolite.
Trvalý link: http://hdl.handle.net/11104/0302609