J. Roberts, C. Friend
1988
Citations
0
Influential Citations
7
Citations
Journal
Surface Science
Abstract
Abstract The reactions of 1-propanethiol on Mo(110) have been studied using temperature programmed reaction spectroscopy and high resolution electron energy loss spectroscopy. Temperature programmed reaction spectroscopy demonstrates that 1-propanethiol decomposes on Mo(110), forming gaseous propane at 280 K, propene at 345 K, and dihydrogen at 360 and 545 K. Vibrational spectroscopy suggests that the key intermediate leading to propane and propene is a surface propyl thiolate, formed on adsorption at 120 K by scission of the SH bond. Competitive with hydrocarbon evolution is the formation of a surface hydrocarbon fragment of unknown stoichiometry, detected by the presence of a CH stretch, v ( C H ), at 2950 cm −1 . The hydrocarbon fragment decomposes at ∼ 525 K to gaseous dihydrogen and surface carbon.