%0 Journal Article %1 Yeo1996a %A Yeo, Y %A Wartnaby, C.E. %A King, D.A. %D 1996 %J Chem. Phys. Lett. %K ACETYLENE; CHEMISORPTION; DECOMPOSITION; ETHYLIDYNE; HYDROGEN; METAL-SURFACES; ORIENTATION,, PLATINUM; SPECTROSCOPY; THERMAL-DESORPTION; microcalorimetry %N 1-2 %P 28-36 %R 10.1016/0009-2614(96)00787-7 %T Microcalorimetric study of ethylene adsorption on the Pt111 surface %U http://tinyurl.sfx.mpg.de/pwoi %V 259 %X The reaction of C2H4 on Pt111 at 300 K has been investigated by single crystal adsorption calorimetry. The initial heats of adsorption and the initial sticking probability are 174 kJ/mol and 0.67 respectively. The adsorption heat versus coverage data shows a remarkable minimum which serves as a basis for a mechanism involving ethylidene (CHCH3) as an intermediate for the formation of ethylidyne (C2H2) on the PtIII surface. The coverage-dependent sticking probability strongly indicates that adsorption is precursor mediated and is well-fitted by the King and Wells expression. From the structure of the decomposition species known to form on the PtIII surface, the average C-Pt bond strength is found to be about 245 kJ/mol, although the actual value is found to be species-dependent.

@article{Yeo1996a, abstract = {The reaction of C2H4 on Pt{111} at 300 K has been investigated by single crystal adsorption calorimetry. The initial heats of adsorption and the initial sticking probability are 174 kJ/mol and 0.67 respectively. The adsorption heat versus coverage data shows a remarkable minimum which serves as a basis for a mechanism involving ethylidene (CHCH3) as an intermediate for the formation of ethylidyne (C2H2) on the Pt{III} surface. The coverage-dependent sticking probability strongly indicates that adsorption is precursor mediated and is well-fitted by the King and Wells expression. From the structure of the decomposition species known to form on the Pt{III} surface, the average C-Pt bond strength is found to be about 245 kJ/mol, although the actual value is found to be species-dependent.}, added-at = {2009-10-30T10:04:05.000+0100}, author = {Yeo, Y and Wartnaby, C.E. and King, D.A.}, biburl = {https://www.bibsonomy.org/bibtex/28ebe5663b2919a93e84e3f30a0ece16a/jfischer}, doi = {10.1016/0009-2614(96)00787-7}, groups = {public}, interhash = {02b1348a82590092d2ce65fec9284160}, intrahash = {8ebe5663b2919a93e84e3f30a0ece16a}, issn = {0009-2614}, journal = {Chem. Phys. Lett.}, keywords = {ACETYLENE; CHEMISORPTION; DECOMPOSITION; ETHYLIDYNE; HYDROGEN; METAL-SURFACES; ORIENTATION,, PLATINUM; SPECTROSCOPY; THERMAL-DESORPTION; microcalorimetry}, number = {1-2}, pages = {28-36}, timestamp = {2009-10-30T10:04:21.000+0100}, title = {Microcalorimetric study of ethylene adsorption on the Pt{111} surface}, url = {http://tinyurl.sfx.mpg.de/pwoi}, volume = 259, year = 1996 }