Abstract
Mixed γ-alumina and thorium oxide samples were prepared with various compositions (100, 95, 90, 80, 50, 25, 15, 5 and 0 wt%, respectively) by addition of a solution of thorium nitrate to a slurry solution of aluminum isopropoxide [Al(OC 3H 7) 3] in deionized water. Mixed oxides (slurry solution) were heated at 120 °C (oil bath) for 24 h with mixing (for uniform distribution of oxides and to remove excess water) followed by calcinations at 600 °C for 6 h. New Fourier-transformed infrared spectroscopy (FTIR) absorption bands and the absence of crystallinity demonstrated by XRD analysis clearly show that γ-alumina and thorium oxide are mixed chemically and on atomic scale during the calcination period. The mechanically mixed oxide retained crystallinity and do not show mixing on the atomic scale. The evaluation for the catalytic activity of single or the chemically mixed catalysts for the dehydration of 2-hexanol and 1,2-diphenyl-2-propanol was investigated. The infrared spectrum of γ-alumina calculated by AM1 method show absorption pattern similar to FTIR.
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.
