Methanol Chemisorption and Decomposition on FeAl(110): A High-Resolution Electron Energy Lose Spectroscopy and Temperature Programmed Desorption Study

Langmuir ◽  
1994 ◽  
Vol 10 (6) ◽  
pp. 1801-1806 ◽  
Author(s):  
Bor-Ru Sheu ◽  
D. R. Strongin
Keyword(s):  
High Resolution ◽  
Electron Energy ◽  
Temperature Programmed Desorption ◽  
Resolution Electron ◽  
Desorption Study ◽  
Temperature Programmed

Surface Reactions in the Decomposition of Zinc Alkyls on Si(100)-2×1 Surfaces

1990 ◽  
Vol 204 ◽  
Author(s):  
M.A. Rueter ◽  
J.M. Vohs
Keyword(s):  
High Resolution ◽  
Surface Reactions ◽  
Temperature Programmed Desorption ◽  
Silicon Surfaces ◽  
Methyl Groups ◽  
Methyl Radicals ◽  
Resolution Electron ◽  
Temperature Programmed ◽  
Electron Energy Loss ◽  
Insight Into

ABSTRACTThe adsorption and reaction of dimethylzinc and diethylzinc on Si(100)-2×l surfaces was studied using temperature programmed desorption and high resolution electron energy loss spectroscopy. These zinc alkyls were found to dissociate at temperatures less than 300 K to produce adsorbed alkyl species and deposit zinc on the surface. During temperature programmed desorption zinc metal desorbed at 530 K leaving only alkyl species on the surface at higher temperatures. Surface methyl groups were found to decompose to carbon and hydrogen or desorb as methyl radicals, while surface ethyl groups underwent a series of surface reactions which resulted in three separate ethylene desorption peaks. The results of this study provide new insight into the reactions of group II metal alkyls on silicon surfaces.

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