Kinetics of CO Oxidation on Single - Crystal Pd , Pt , and I r Paul

Acknowledgment. This work was Supported by the Department of Energy, Basic Energy Sciences (Grant DE-FG02-84ER13289). C.M.F. and J.T.R. thank R. J. Madix for allowing us the use of his high-resolution electron energy loss spectrometer. results in the stabilization of ethyl thiolate with respect to C-S bond cleavage. Low-temperature C-S bond cleavage at low exposure ultimately results in nonselective decomposition to surface carbon and sulfur. At high coverage, the activation energy for decomposition becomes sufficiently high so that hydrocarbon formation competes effectively with nonselective decomposition. Registry No. Mo, 7439-98-7; C2H5SH, 75-08-1.