Translational energy of desorbing CO2 in steady state CO oxidation on a stepped 
platinum (133) surface

Seimiya, Yoshiyuki; Cao, Gengyu; Ohno, Yuichi; Yamanaka, Toshiro; Matsushima, Tatsuo; Jacobi, Karl

doi:10.1016/S0039-6028(98)00548-2

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Translational energy of desorbing CO2 in steady state CO oxidation on a stepped platinum (133) surface

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Jacobi, Karl
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Seimiya, Y., Cao, G., Ohno, Y., Yamanaka, T., Matsushima, T., & Jacobi, K. (1998). Translational energy of desorbing CO2 in steady state CO oxidation on a stepped platinum (133) surface. Surface Science Letters, 415(1-2), L988-L992. doi:10.1016/S0039-6028(98)00548-2.

Cite as: https://hdl.handle.net/21.11116/0000-0007-0C3B-B

Abstract

Velocity distributions of desorbing product CO₂ in CO oxidation on Pt(133) were analyzed in both the active and inhibited regions at the steady state. The translation temperature is high in the active region where the reaction is in the first order with respect to CO. It decreases sharply with increasing CO pressure when the reaction shifts to the inhibited region where CO retards the reaction. The translational energy of CO₂ increases linearly with the surface temperature.