caa a22 4500 475843983 CHVBK 20180406123908.0 cr unu---uuuuu 170329e20001201xx s 000 0 eng 10.1023/A:1009007116576 doi (NATIONALLICENCE)springer-10.1023/A:1009007116576 Molecular ethane adsorption dynamics on oxygen-covered Pt(111) [Elektronische Daten] [Chia-Ling Kao, Anders Carlsson, Robert Madix] The dynamics of ethane trapping on Pt(111)-p(2×2)-O were investigated by supersonic molecular beam techniques at a surface temperature of 100 K. The initial trapping probability was measured in the range of incident energy from 10 to 45 kJ/mol and incident angles from 0° to 60°. A broad angular distribution of scattered ethane and total energy scaling (ET cos 0.2θ) for ethane trapping indicated a corrugated gas-surface potential. Stochastic trajectory simulations employing a potential developed from the trapping of ethane on Pt(111) gives quantitative agreement of the measured initial trapping probabilities over entire ranges of incident energies and angles. Calculations of energy transfer for ethane after the first bounce on Pt(111) and Pt(111)-p(2×2)-O clearly indicate that interconversion of parallel and perpendicular momentum and energy transfer to lattice vibrations account primarily for the differences in trapping probabilities between ethane on the two surfaces. At glancing incidence trapping is not significantly reduced on the oxygen-covered Pt(111) because the parallel momentum appears to be transferred partially to phonons. Plenum Publishing Corporation, 2000 platinum nationallicence oxygen nationallicence ethane nationallicence sticking nationallicence molecule-solid interactions nationallicence molecule-solid scattering and diffraction inelastic nationallicence energy dissipation nationallicence molecular dynamics simulation nationallicence Kao Chia-Ling Chemical Engineering Department, Stanford University, 94305, CA, USA aut Carlsson Anders Chemical Engineering Department, Stanford University, 94305, CA, USA aut Madix Robert Chemical Engineering Department, Stanford University, 94305, CA, USA aut Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 14/1-4(2000-12-01), 63-69 1022-5528 14:1-4<63 2000 14 11244 https://doi.org/10.1023/A:1009007116576 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009007116576 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kao Chia-Ling Chemical Engineering Department, Stanford University, 94305, CA, USA aut NATIONALLICENCE 700 1- Carlsson Anders Chemical Engineering Department, Stanford University, 94305, CA, USA aut NATIONALLICENCE 700 1- Madix Robert Chemical Engineering Department, Stanford University, 94305, CA, USA aut NATIONALLICENCE 773 0- Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 14/1-4(2000-12-01), 63-69 1022-5528 14:1-4<63 2000 14 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer