한국수소및신에너지학회논문집 (Transactions of the Korean hydrogen and new energy society)

  • 제17권3호
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  • Pages.241-247
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  • 2006
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  • 1738-7264(pISSN)
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  • 2288-7407(eISSN)
한국수소및신에너지학회 (The Korean Hydrogen and New Energy Society)
권호 표지

수소연료에서 알루미나 담지 백금 촉매상에서의 일산화탄소 선택적 산화 반응

Preferential Oxidation of CO over Alumina Supported Pt Catalysts in Hydrogen-rich Fuels

  • 최진순 (한국과학기술연구원 청정기술연구센터) ;
  • 서동진 (한국과학기술연구원 청정기술연구센터)
  • Choi, Jin-Soon (Clean Technology Research Center, Korea Institute of Science and Technology) ;
  • Suh, Dong-Jin (Clean Technology Research Center, Korea Institute of Science and Technology)
  • 발행 : 2006.09.15
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초록

The catalytic performances for CO preferential oxidation in hydrogen-rich fuels were investigated by varying the types of alumina supports, additives excluding platinum, and synthetic methods of impregnation and sol-gel synthesis. The reactions were conducted in the range of $25{\sim}300^{\circ}C$ over Pt, Co, and/or Na impregnated catalysts supported on commercial gamma-alumina, pseudoboehmite, or sol-gel derived xerogels. Catalytic activities were enhanced by cobalt addition due to strong Pt-Co interactions in the bimetallic phase. Additional sodium promoted not only the formation of the Pt-Co bimetallic interphase but also oxygen adsorption capability, giving rise to increase in the CO oxidation rate at lower temperatures. Moreover, chemical interaction between Pt and Co was considerably enhanced by sol-gel synthesis.

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참고문헌

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