By impregnating γ-Al2O3 with cerium/zirconium citrate solutions and subsequent calcination nanostructured CemZr1-mO2 mixed oxides supported on Al2O3 are obtained, which feature remarkably high oxygen storage even after a calcination at 1373 K for 24 h. Mutual thermal stabilisation between alumina and solid solutions has been observed, which prevents formation of α-alumina and sintering effects after a severe ageing.
Stabilisation of nanostructured CeO2-ZrO2 solid solutions by addition of Al2O3: a suitable way for production of thermally stable oxygen storage/release promoters for three-way catalysts
DI MONTE, ROBERTA;FORNASIERO, Paolo;KASPAR, JAN;GRAZIANI, MAURO
2001-01-01
Abstract
By impregnating γ-Al2O3 with cerium/zirconium citrate solutions and subsequent calcination nanostructured CemZr1-mO2 mixed oxides supported on Al2O3 are obtained, which feature remarkably high oxygen storage even after a calcination at 1373 K for 24 h. Mutual thermal stabilisation between alumina and solid solutions has been observed, which prevents formation of α-alumina and sintering effects after a severe ageing.File in questo prodotto:
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