Abstract
The structure of Mo–Zr oxides has been investigated by X-ray diffraction and Fourier-transform infrared and laser Raman spectra. At low Mo content, MoO3 is highly dispersed on ZrO2, an amorphous phase being formed which is characterized as polymolybdates. The i.r. and Raman bands due to MoO in polymolybdate are shifted from 930 to 970 cm–1 with increasing Mo content on ZrO2, suggesting that with low Mo catalysts surface Mo species are more distorted. The rates of oxidation of ethanol and propene pass through maxima around 10 atom % Mo. These results provide evidence that the rates over polymolybdate are 10–20 times higher than those over crystalline MoO3.
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 callMore From: Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
Disclaimer: 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.
