ISSN:
1572-879X
Keywords:
HREELS
;
chemisorption
;
trans-1,2-dichloroethene
;
DCE
;
Cu(110)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The chemisorption and reaction of trans-dichloroethene on Cu(110) have been investigated by high-resolution electron-energy-loss spectroscopy (HREELS) as a function of coverage and temperature. At 135 K, both physisorbed and chemisorbed trans-dichloroethene are present. Heating to 200 K leads to the formation of acetylene and of a partially dehalogenated intermediate species. By 300 K, the acetylene trimerises to form adsorbed benzene at the surface. Adsorption of trans-dichloroethene at 300 K produces benzene directly. Evidence of C–Cl cleavage at temperature as low as 220 K is clearly marked by the emergence of very intense Cu–Cl stretching vibrations which remain even after further heating up to 570 K.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1019024105077
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