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Two‐Dimensional Phase Separation: Co-Adsorption of Hydrogen and Carbon Monoxide on the (111) Surface of Rhodium

Williams, Ellen D. and Thiel, Patricia A. and Weinberg, W. Henry and Yates, John T. (1979) Two‐Dimensional Phase Separation: Co-Adsorption of Hydrogen and Carbon Monoxide on the (111) Surface of Rhodium. In: The Physics of Surfaces: Aspects of the Kinetics and Dynamics of Surface Reaction. AIP Conference Proceedings. No.61. American Institute of Physics , New York, NY, pp. 275-283. ISBN 0-88318-160-6. http://resolver.caltech.edu/CaltechAUTHORS:20190402-142241299

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Abstract

The co‐adsorption of CO and H_2 on Rh(111) at low temperature (∼ 100 K) has been studied using thermal desorption mass spectrometry (TDS) and Low‐Energy Electron Diffraction(LEED). The probability of adsorption of CO on rhodium pretreated with hydrogen has been found to decrease slowly with increasing amounts of hydrogen on the surface. In addition, the effect of surface hydrogen on the CO LEED patterns indicates segregation of hydrogen and CO. These results can be explained in terms of a strong repulsive CO–H interaction and a mobile precursor model of CO adsorption.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1063/1.2948590DOIArticle
Additional Information:© 1980 American Institute of Physics. Research supported by the National Science Foundation under Grant No. CHE77-16314.
Funders:
Funding AgencyGrant Number
NSFCHE77-16314
NSF Predoctoral FellowshipUNSPECIFIED
Camille and Henry Dreyfus FoundationUNSPECIFIED
Sherman Fairchild FoundationUNSPECIFIED
Record Number:CaltechAUTHORS:20190402-142241299
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190402-142241299
Official Citation:Two‐Dimensional Phase Separation: Co‐Adsorption of Hydrogen and Carbon Monoxide on the (111) Surface of Rhodium. Ellen D. Williams, Patricia A. Thiel, W. Henry Weinberg, and John T. Yates Jr. AIP Conference Proceedings 1980 61:1, 275-283; doi: 10.1063/1.2948590
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94376
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:02 Apr 2019 21:41
Last Modified:02 Apr 2019 21:41

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