Abstract
The relationship between catalytic activity in the complete oxidation of benzene and the structure of supported vanadium oxide catalysts modified by palladium was studied. Chemical analysis, X-ray diffraction, ESR spectroscopy and diffuse reflectance spectroscopy indicated that the formation of a catalytically active phase occurs through partial reduction of V 5+ to V 4+. The V 4+ ions in a matrix of vanadium pentoxide form clusters in which the electrons possess high mobility. Further, a phase similar to V 4O 9 is formed. The promoting effect of palladium is related to the activation of oxygen and the transition of oxygen and the transition of the low-valent vanadium species to V 5+. A scheme of the redox mechanism is proposed.
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.
