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《Chinese Journal of Catalysis》 2008-05
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Preparation of Pt/Al_2O_3 Metallic Honeycomb Catalyst and Its Catalytic Properties for CO Preferential Oxidation

ZHANG Jianguo1,2,JIA Jingsheng1,ZHANG Chunxi1,WANG Shudong1(1 Dalian Institute of Chemical Physics,The Chinese Academy of Sciences,Dalian 116023,Liaoning,China;2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China)  
A Pt/Al_2O_3 metallic honeycomb catalyst was prepared and studied in the CO preferential oxidation.The surface of the Fe-20Cr-5Al metallic substrate(400 cells/in2) appeared needle shape structure when it was oxided at 900 ℃ for 10 h.The optimal Al_2O_3 coating procedure was slurry-sol-slurry.The metallic honeycomb catalyst showed CO conversion of 54.0% and CO selectivity of 42.5% in CO preferential oxidation at 120 ℃,which were 1.7 and 1.4 times that of the ceramic honeycomb catalyst,respectively.
【CateGory Index】: O643.36
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