ACTIVATED ADSORPTION OFCO2ON PURE AND PROMOTED NOBLE METAL SURFACES OBSERVED WITH RAMAN SPECTROSCOPY

W. Akemann and A. Otto
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W. Akemann: Lehrstuhl für Oberflächenwissenschaft, Heinrich-Heine- Universität Düsseldorf, 40225 Düsseldorf, Germany
A. Otto: Lehrstuhl für Oberflächenwissenschaft, Heinrich-Heine- Universität Düsseldorf, 40225 Düsseldorf, Germany

Surface Review and Letters (SRL), 1994, vol. 01, issue 04, 557-559

Abstract: The adsorption ofCO2to surfaces of pure and promoted noble metal films is investigated at 40 K using surface-enhanced Raman spectroscopy (SERS). The data indicate nonactivated adsorption on silver and gold, activated adsorption on potassium and a coexistence of activated and nonactivated adsorption on copper and potassium-doped silver. The activated species is identified to be a${\rm{CO}}_2^ - $surface anion.

Date: 1994
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DOI: 10.1142/S0218625X94000655

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