Abstract
The excellent catalytic performance of phos- phate-vanadium impregnated silica-titania aerogel as a bifunctional oxidative and acidic catalyst was evaluated in consecutive transformation of 1-octene to 1,2-octanediol through formation of 1,2-epoxyoctane using aqueous H2O2. Phosphate group and vanadium were impregnated onto silica-titania aerogel via wet impregnation method at room temperature, followed by a high calcination temperature. Significant increase of hydrated, tetrahedrally coordinated Ti species was found in phosphate-vanadium impregnated silica-titania sample. Pyridine adsorption study revealed that the combination of phosphate group and vanadium is essential for generation of Bronsted acidic sites. Phos- phate-vanadium impregnated silica-titania catalyst pro- duced 1,2-octanediol (275 lmol) with selectivity of 65%. In contrast, no noticeable diol was produced when silica- titania aerogel and phosphate treated silica-titania sample were used.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
