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Comparative studies of alkane activation by low-index surfaces of iridium and platinum

Szuromi, P. D. and Engstrom, J. R. and Wittrig, T. S. and Weinberg, W. H. (1985) Comparative studies of alkane activation by low-index surfaces of iridium and platinum. Journal of Vacuum Science and Technology A, 3 (3). pp. 1560-1561. ISSN 0734-2101. http://resolver.caltech.edu/CaltechAUTHORS:20120628-135219595

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Abstract

The interaction of alkanes with low-index surfaces of iridium at low temperatures and pressures has been studied in our laboratory by thermal desorption mass spectrometry and low-energy electron diffraction. While the reconstructed (110)-(1 × 2) surface of iridium initiates dissociative chemisorption of ethane and all higher alkanes at 125 K in the low coverage limit, similar reactions with the close-packed (111) surface occur readily only at defect sites. Thus, surface geometry influences strongly the activation barriers to C-H bond scission in alkanes on iridium surfaces.


Item Type:Article
Related URLs:
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http://dx.doi.org/10.1116/1.573170DOIUNSPECIFIED
http://link.aip.org/link/doi/10.1116/1.573170PublisherUNSPECIFIED
Additional Information:© 1985 American Vacuum Society. Received 29 October 1984; accepted 4 December 1984. Supported by the National Science Foundation under Grant No. CHE82-06487.
Funders:
Funding AgencyGrant Number
NSFCHE82-06487
Classification Code:PACS: 81.05.Bx; 82.65.+r; 68.43.-h
Record Number:CaltechAUTHORS:20120628-135219595
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120628-135219595
Official Citation:Summary Abstract: Comparative studies of alkane activation by low-index surfaces of iridium and platinum P. D. Szuromi, J. R. Engstrom, T. S. Wittrig, and W. H. Weinberg, J. Vac. Sci. Technol. A 3, 1560 (1985), DOI:10.1116/1.573170
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:32173
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:28 Jun 2012 22:46
Last Modified:26 Dec 2012 15:25

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