Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/9734
Title: Catalytic activity of heteropolytungstic acid encapsulated into mesoporous material structure
Authors: Gündüz, Gönül
Dimitrova, Rayna P.
Yılmaz, Selahattin
Keywords: Encapsulation
Mesoporous materials
Heteropoly acid
Isomerization
Alpha-pinene
Methanol
Issue Date: 2007
Publisher: Walter de Gruyter GmbH
Abstract: The paper presents a spectroscopic and catalytic study of encapsulated Keggin type heteropoly acid (12-tungstophosphoric acid, HPW) in the mesopores of MCM-41 molecular sieves. Nitrogen physisorption, FTIR, SEM, XRD and catalytic methods have been used to characterize and compare the properties of the samples. Methanol conversion, alpha-pinene isomerization and ethyl acetate oxidation have been applied as model reactions for the evaluation of acid site activity. The combined physicochemical and catalytic investigations clearly show that the introduction of 12-tungstophosphoric acid into MCM-41 causes significant changes in the properties of the sample.
URI: https://hdl.handle.net/11147/9734
ISSN: 2194-5748
1542-6580
Appears in Collections:Chemical Engineering / Kimya Mühendisliği
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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