کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
63782 | 48252 | 2015 | 4 صفحه PDF | دانلود رایگان |
In the interlayer expansion of the layered zeolite precursor COK-5, a Sn, salt, bis(2,4-pentanedionate)-dichlorotin [Sn(acac)2Cl2], instead of a silylating agent was used to link the layers at 180 °C. The obtained material, which is designed as Sn-COE-5, shows a shift of the first XRD reflection, which is very similar to that of COK-5 interlayer expanded with dichlorodimethylsilane (DCDMS), indicating an increase in interlayer distance. X-ray diffraction (XRD), N2 sorption isotherms, inductively coupled plasma (ICP), and X-ray photoelectron spectroscopy (XPS) support the incorporation of isolated Sn sites in the sample. In the conversion of glucose to levulinic acid, Sn-COE-5 exhibits much higher activity than COK-5, which is due to the presence of Lewis acidic sites in the Sn-COE-5.
A new zeolite containing tin species (Sn-COE-5) is successfully synthesized from an interlayer expansion reaction of layered COK-5 precursor with a tin salt of Sn(acac)2Cl2, which is catalytically active for the conversion of glucose to levulinic acid.Figure optionsDownload as PowerPoint slide
Journal: Journal of Energy Chemistry - Volume 24, Issue 5, September 2015, Pages 642–645