Abstract
The catalytic oxidation of CO and O 2 to form CO 2 has been studied on a polycrystalline palladium foil in a pressure range from 10 -4 to 1 Pa. The concentrations of both reactants and products were analyzed by a quadrupole mass spectrometer, while the coverage and binding states of the adsorbed species were determined by infrared reflection-absorption spectroscopy (IR-RAS), using an FT-IR spectrometer. This reaction was found to proceed via the Langmuir- Hinshelwood mechanism on the basis of the finding that the rate of steady state reaction of CO 2 formation was associated not with the gaseous pressures, but with the amounts of adsorbates. A reaction intermediate, adsorbed CO, was bridge-bonded on the Pd surface. It was also shown that the density of adsorbed CO depended only on the ratio of the gaseous pressure of CO to O 2 and not on the partial pressure of CO.
Published Version
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.
