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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 |
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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gunduz2007.pdf | 578.88 kB | Adobe PDF | View/Open |
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