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Investigation of La3+-modified Al2O3supported CeO2

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Abstract

X-ray photoelectron spectroscopy measurements indicate that the Ce3+ fraction in Al2O3-supported CeO2 can be decreased by the incorporation of La3+. If La3+ is incorporated into the Al2O3 before CeO2 is added, a higher CeO2 dispersion and a greater range of reversible reducibility of the CeO2 may also be obtained. These changes offer potential for improvement in the oxygen storage capacity provided by CeO2 in three-way catalysts.

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Authors and Affiliations

  1. Ford Motor Company, Mail Drop 3179, Bldg. SRL, PO Box 2053, 48121-2053, Dearborn, MI, USA

    G. W. Graham, P. J. Schmitz, R. K. Usmen & R. W. McCabe

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  1. G. W. Graham
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  2. P. J. Schmitz
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  3. R. K. Usmen
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  4. R. W. McCabe
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Graham, G.W., Schmitz, P.J., Usmen, R.K. et al. Investigation of La3+-modified Al2O3supported CeO2 . Catal Lett 17, 175–184 (1993). https://doi.org/10.1007/BF00763940

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  • DOI: https://doi.org/10.1007/BF00763940

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