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IR study of interaction of propylene at CoO-MgO and CoO-MoO3-MgO surfaces

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Abstract

IR spectra of propylene adsorbed in CoO-MgO and CoO-MgO-MoO3 solid solutions show that a surface π-complex with Co2+ ions is formed, strongly bonded in the former case and weakly in the latter. Thus, introduction of Mo strongly modifies the catalytic properties of Co2+ active centers. In the presence of oxygen, allylic species, aldehyde and carboxylate complexes appear.

Abstract

ИК спектры пропилена, адсорбированного твердыми ростворами CoO-MgO и CoO-MgO-MoO3 свидетельсвуют об образовании поверхностных π-комплексов с ионами Co2+, сильно связанных в первом спучае и спабо в последнем случае. Так, введение Mo сильно изменяет каталитические свойства активных центров Co2+. В присутствии кислородно-аллильных частиц появляются комплексы альдегида и карбоксилата.

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Authors and Affiliations

  1. Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Kraków, Poland

    R. Grabowski & J. Haber

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  1. R. Grabowski
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  2. J. Haber
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Grabowski, R., Haber, J. IR study of interaction of propylene at CoO-MgO and CoO-MoO3-MgO surfaces. React Kinet Catal Lett 21, 455–460 (1982). https://doi.org/10.1007/BF02095841

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  • DOI: https://doi.org/10.1007/BF02095841

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