Accelerated sintering of PtRh/Al2O3 catalysts in an oxygen periodic pulse flow |
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| Authors: | R Taha D Duprez |
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| Affiliation: | (1) Laboratoire de Catalyse en Chimie Organique, 40, Av. Recteur Pineau, 86022 Poitiers Cedex, France |
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| Abstract: | PtRh catalysts were prepared by coimpregnation, with chlorine-free precursors of a  -alumina. They were sintered at 973 K under a continuous flow of O2 (1% in Ar or air) or of a flow of Ar into which pulses of O2 were injected periodically. Under the latter conditions the sintering was significantly accelerated, particularly for a certain value of the period of O2 pulses. |
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| Keywords: | Platinum-rhodium catalysts accelerated sintering of PtRh bimetallics sintered metal catalysts characterization of |
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