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Volume 63, 1967
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Infra-red study of adsorption of carbon dioxide and water on magnesium oxide

Abstract

The infra-red spectra from 4000 to 750 cm–1 of various carbonato species adsorbed on magnesium oxide are presented. When CO2 is adsorbed at temperatures above 300°C a bidentate species is formed. The interaction on the MgO surface of CO2 with H2O and D2O results in the unidentate carbonate species when CO2 is adsorbed first but a bi-carbonate species HO—CO2 is formed when water is adsorbed first. Correlations have been made of the low-frequency carbonate bands (1200–800 cm–1) and the carbonate bands in the region 1800–1200 cm–1. Infra-red absorption bands in the region 1200–800 cm–1, are better defined when D2O rather than H2O is used for the interaction studies.

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Article type: Paper
DOI: 10.1039/TF9676302769
Citation: Trans. Faraday Soc., 1967,63, 2769-2777
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    Infra-red study of adsorption of carbon dioxide and water on magnesium oxide

    J. V. Evans and T. L. Whateley, Trans. Faraday Soc., 1967, 63, 2769
    DOI: 10.1039/TF9676302769

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