Adsorption of Oxygen on Pt (111) and Its Reactivity to Hydrogen and Carbon Monoxide.

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Abstract:

Oxygen was found to adsorb on Pt111 with an initial sticking coefficient of 0.048 or - .006 and linear adsorption kinetics. The surface saturated at an oxygen to platinum ratio of 14. The reactivity of adsorbed oxygen to hydrogen and CO was determined from steady state oxygen coverages for H2-O2 and CO-O2 mixtures. From the reactivity data which show reaction probabilities of 1.0 for CO and 12 for H2 over a wide range of oxygen coverages, it is concluded that both H2 and CO are reactive in mobile states which are probably the precursors to adsorption. Author

Author(s):
Monroe, David R. ; Merrill, Robert P.
Author Organization(s):
CALIFORNIA UNIV BERKELEY
Descriptive Note:
Interim rept.,
Pagination:
0023

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFOSR-TR-78-1432
Contract/Grant Number(s):
AFSOR-76-2926
Task Number(s):
A2
Project Number(s):
2303
Monitor Series:
TR-78-1432
 Subject Terms
Joint Capability Areas:
JCA_6_Net Centric
Modernization Areas:
Fully Networked C3
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*OXYGEN, *PLATINUM, *ABSORPTION, *ELECTRON DIFFRACTION, *POLYCRYSTALLINE, X RAY DIFFRACTION, HYDROGEN, LOW ENERGY, COEFFICIENTS, MASS SPECTROMETERS, CARBON DIOXIDE, ATOMIC STRUCTURE
Field(s)/Group(s):
Inorganic Chemistry, Metallurgy and Metallography, Crystallography, Optics
Keyword(s):
Platinum(111), PE61102F, WUAFOSR2303A2
Report Date:
1978 Oct 01