ISS and TPD study of the adsorption and interaction of CO and H2 on polycrystalline Pt.
- Author
- Hoflund, Gar B.
- Published
- Jun 1, 1990.
- Physical Description
- 1 electronic document
- Additional Creators
- Melendez, Orlando and Schryer, David R.
Online Version
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- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access - Summary
- The adsorption and interaction of CO and H2 on polycrystalline Pt has been studied using ion scattering spectroscopy (ISS) and temperature programmed desorption (TPD). The ISS results indicate that the initial CO adsorption on Pt takes place very rapidly and saturates the Pt surface with coverage close to a monolayer. ISS also shows that the CO molecules adsorb at an angular orientation from the surface normal and perhaps parallel to the surface. A TPD spectrum obtained after coadsorbing C-12 O-16 and C-13 O-18 on Pt shows no isotopic mixing, which is indicative of molecular CO adsorption. TPD spectra obtained after coadsorbing H2 and CO on polycrystalline Pt provides evidence for the formation of a CO-H surface species.
- Other Subject(s)
- Collection
- NASA Technical Reports Server (NTRS) Collection.
- Note
- Document ID: 19900015286.
Accession ID: 90N24602.
Low-Temperature CO-Oxidation Catalysts for Long-Life CO2 Lasers; p 251-261. - Terms of Use and Reproduction
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