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Issue 11, 1998
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Investigation of the surface structure of colloidal platinum by infrared spectroscopy of adsorbed CO

Abstract

The infrared spectra of 12CO and of 12CO–13CO mixtures adsorbed on poly(vinylpyrrolidone)-stabilized colloidal platinum in liquid dispersion are reported. Comparison with the vibrational spectra reported for analogous supported Pt particles shows the absence of detectable terrace sites on the colloidal particles. Spectral features resulting from vibrational coupling between the adsorbed CO molecules are analysed in terms of the structure and sizes of the metal particles and the adsorption sites available for CO.

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Article information


New J. Chem., 1998,22, 1267-1273
Article type
Paper

Investigation of the surface structure of colloidal platinum by infrared spectroscopy of adsorbed CO

D. de Caro and J. S. Bradley, New J. Chem., 1998, 22, 1267
DOI: 10.1039/A803934H

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