High catalytic performance of Pt-Fe alloy nanoparticles supported in mordenite pores for preferential CO oxidation in H2-rich gas
作者： M KOTOBUKI , A WATANABE , H UCHIDA , H YAMASHITA , M WATANABE
DOI: 10.1016/J.APCATA.2006.04.003
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摘要: Abstract Catalytic performance of Pt-Fe/mordenite for preferential CO oxidation (PROX) was tested in comparison with that Pt-Fe/Al 2 O 3 . The former catalyst pretreated at 300 °C (Pt-Fe/M-300) showed extremely high reactivity and selectivity the PROX reaction but treated 500 °C (Pt-Fe/M-500) inferior performances as well Characterization catalysts indicated most metallic particles Pt-Fe/M-300 were supported mordenite cages, whereas Pt-Fe/M-500 outside. It also found cages have ca. 10 times higher surface area than outside can adsorb selectively, compared H , not Pt-Fe/M-500. Such a difference above specific properties from others is presumably reason why it exhibits superior performance. Complete elimination demonstrated 150 °C synthesized gas mixture 1% CO, 20% balance on no noticeable degradation done 24 h, indicating potential practical application to fuel processor polymer electrolyte cells.
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