Abstraction of D adsorbed on Pt(100) surfaces by gaseous H atoms: effect of surface heterogeneity

作者: Th. Zecho , B. Brandner , J. Küppers

DOI: 10.1016/S0039-6028(98)00735-3

关键词: Chemical kineticsHydrogenReactivity (chemistry)AdsorptionPhysical chemistryDeuteriumKineticsThermal desorption spectroscopyChemistryPlatinum

摘要: Abstract D- (H)-covered Pt(100) surfaces were exposed to thermal H (D) atoms at 90 K and the kinetics of reaction product formation was measured simultaneously with atom exposure. HD D 2 (H ) observed as products. The these products differ from in analogous reactions on Pt(111) Pt(110) surfaces, give further evidence for structure sensitivity abstraction reactions. can be explained by assuming heterogeneity reactivity sticking.

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