An Interpretation of the Ethylenic, Carbidic, and Graphite Auger Lineshapes of Chemisorbed Carbon Species.
Abstract
Recently, Koel reported the C KVV Auger lineshapes for Ethylene on nickel(100) at a temperature of 100 K and for the decomposition products at 250, 300, and 600 K. We present detailed interpretations of these lineshapes, as well as for other previously reported carbidic and graphitic lineshapes. The most significant results of this work can be summarized briefly as follows: (1) Although the lineshapes for the chemisorbed and comparable gas phase species are similar, they are composed of very different principal and satellite contributions; and (2) The Auger intensity arising from carbon hydrogen much higher two-hole binding energy than that from C-M (metal) bonds. Thus the amount of C-H and C-M bond character is seen to remain even at 600 K on the Ni(100) surface. Keywords: Auger Spectroscopy; Carbides; Graphite.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1987
- Accession Number
- ADA189092
Entities
People
- David E. Ramaker
- F. L. Hutson
Organizations
- George Washington University