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Investigation of La3+-modified Al2O3supported CeO2 (1993)

Graham, G. W. ; Schmitz, P. J. ; Usmen, R. K. ; [et al.]

Springer

Catalysis letters 17 (1993), S. 175-184

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ISSN: 1572-879X

Keywords: Lanthana-modified alumina ; alumina-supported ceria ; oxygen storage ; three-way catalyst ; X-ray photoelectron spectroscopy

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: 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.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00763940

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