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Temperature-Programmed Reduction Studies of Al2 O3-Supported Pt/Rh Catalysts
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English
Abstract
This paper presents temperature programmed reduction (TPR) results or Al2O3-supported Pt/Rh bimetallic catalysts. Our results indicate that Rh undergoes harmful interactions with the Al2O3 support under high-temperature oxidizing conditions regardless of whether Pt was present in the catalyst. This Rh-Al2O3 interactions renders the Rh irreducible in 5% H2 at temperatures below 600°C. These results suggest that the mechanism of oxidative deterioration of bimetallic Pt/Rh catalyst is substantially similar to the deterioration mechanism for monometallic Rh/Al2O3 catalysts.
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Citation
Wong, C. and Tsang, C., "Temperature-Programmed Reduction Studies of Al2 O3-Supported Pt/Rh Catalysts," SAE Technical Paper 922337, 1992, https://doi.org/10.4271/922337.Also In
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