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The Effect of Calcination Temperature of RuTi Catalysts on the Reaction Activity of NH3-SCO

RuTi 촉매의 소성온도가 NH3-SCO 반응활성에 미치는 영향

  • Shin, Jung Hun (Department of Environmental Energy Engineering, Graduate school of Kyonggi University) ;
  • Hong, Sung Chang (Department of Environmental Energy Engineering, Kyonggi University)
  • 신중훈 (경기대학교 일반대학원 환경에너지공학과) ;
  • 홍성창 (경기대학교 환경에너지공학과)
  • Received : 2020.02.11
  • Accepted : 2020.03.18
  • Published : 2020.04.10

Abstract

In this study, the effect of calcination temperature on the production of RuTi catalyst in NH3-SCO (selective catalytic oxidation) was investigated. The RuTi catalyst was prepared using the wet impregnation method, and calcined at 400~600 ℃ for 4 h in air condition. The catalysts were named RuTi x00 where x00 means the calcination temperature. According to XRD (X-Ray diffraction), TEM (transmission electron microscope), H2-TPR (H2-temperature programmed reduction) analyses, RuTi x00 catalysts displayed that the dispersion of active metal decreased via increasing the calcination temperature. The catalysts with low dispersion showed a decrease in the surface adsorption oxygen species (Oβ) and NH3 adsorption amount via XPS, and NH3-TPD analyses. Therefore, the RuTi 400 catalyst was well dispersed in the active metal on TiO2 surface, and also, the NH3 removal efficiency was excellent.

Keywords

Acknowledgement

Supported by : 경기대학교 대학원

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