Catalytic activity of heteropolytungstic acid encapsulated into mesoporous material structure
Küçük Resim Yok
Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Walter De Gruyter Gmbh
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
encapsulation, mesoporous material, heteropoly acid, isomerization, alpha-pinene, methanol, ethyl acetate
Kaynak
International Journal of Chemical Reactor Engineering
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
5