Title of article
Surface structure and relaxation during the oxidation of carbon monoxide on Pt–Pd bimetallic surfaces
Author/Authors
Lucas، نويسنده , , C.A. and Markovic، نويسنده , , N.M and Ball، نويسنده , , M and Stamenkovic، نويسنده , , V and Climent، نويسنده , , V and Ross، نويسنده , , P.N، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2001
Pages
6
From page
241
To page
246
Abstract
The atomic structure and surface relaxation of Pd monolayer on Pt(1 1 1) has been studied by surface X-ray scattering, in an aqueous environment under electrostatic potential control, during the adsorption and oxidation of carbon monoxide. The results show that the Pd–Pt layer spacing contracts at the onset of CO oxidation before the Pd adlayer forms an oxide structure that is incommensurate with the Pt lattice. Both the oxide formation and the lattice contraction are fully reversible over many cycles of the applied electrode potential.
Keywords
Surface relaxation and reconstruction , Platinum , X-Ray scattering , PALLADIUM , Diffraction , and reflection , Electrochemical methods , and topography , Roughness , surface structure , morphology , Solid–liquid interfaces , CARBON MONOXIDE
Journal title
Surface Science
Serial Year
2001
Journal title
Surface Science
Record number
1680223
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