Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Preparation of Perovskite Catalysts and Its Application to Methane Combustion

페롭스카이트 촉매의 제조와 메탄 산화에 응용

  • Hahm, Hyun-Sik (Department of Chemical Engineering, Myongji University) ;
  • Kim, Kyu-Sung (Department of Chemical Engineering, Myongji University) ;
  • Ahn, Sung-Hwan (Department of Chemical Engineering, Myongji University) ;
  • Shin, Ki-Seok (Department of Chemical Engineering, Myongji University) ;
  • Kim, Song-Hyoung (Department of Chemical Engineering, Myongji University) ;
  • Park, Hong-Soo (Department of Chemical Engineering, Myongji University)
  • 함현식 (명지대학교 공과대학 화학공학과) ;
  • 김규성 (명지대학교 공과대학 화학공학과) ;
  • 안성환 (명지대학교 공과대학 화학공학과) ;
  • 신기석 (명지대학교 공과대학 화학공학과) ;
  • 김송형 (명지대학교 공과대학 화학공학과) ;
  • 박홍수 (명지대학교 공과대학 화학공학과)
  • Published : 2007.03.31
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Abstract

Methane combustion over perovskite catalysts was investigated. For the preparation of catalysts, Co, Mn, Fe, and Ni were used as B-site components of the perovskite catalysts $(ABO_3)$ and La was used as A-site component. The effect of calcination temperature on methane combustion and perovskite structure was also investigated. The structure of perovskites, surface area, and adsorbed oxygen species were tested with XRD, BET apparatus, and $O_2-TPD$, respectively. The formation of perovskite structure was affected by the calcination temperature. The catalyst desorbing oxygen at a lower temperature showed better activity for the methane combustion, therefore, the oxygen species desorbing at lower temperatures is responsible for the methane combustion.

Keywords

References

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