Abstract
The adsorption and reaction of ethylene on epitaxial Pt films supported on ZrO 2(100) and ZnO(0001) was studied using high-resolution electron energy-loss spectroscopy (HREELS). On the (111) oriented surfaces of the supported Pt films, ethylene was found to adsorb in both di-σ and π-bonded configurations at temperatures near 100 K. This result is in contrast to the interaction of ethylene with Pt(111) where only the di-σ species is stable at 100 K and suggests that the surfaces of the films contained a high concentration of steps and other defects. Both di-σ and π-bonded ethylene were also detected on Pt particles supported on ZrO 2(100) at 130 K. On the supported Pt films and particles, adsorbed ethylene underwent dehydrogenation and rearrangement to form ethylidyne upon heating to 300 K. The results of this study serve to further demonstrate the utility of HREELS in characterizing adsorbates on model supported metal catalysts.
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.
