Influence of Active Metal Dispersion over Pt/TiO2 Catalyst on NH3-SCO Reaction Activity

Pt/TiO2 촉매의 활성금속 분산도가 NH3-SCO 반응활성에 미치는 영향

  • Shin, Jung Hun (Department of Environmental Energy Engineering, Graduate school of Kyonggi University) ;
  • Kwon, Dong Wook (Materials Architecturing Research Center, Korea Institute of Science and Technology) ;
  • Kim, Geo Jong (Department of Environmental Energy Engineering, Graduate school of Kyonggi University) ;
  • Hong, Sung Chang (Department of Environmental Energy Engineering, Kyonggi University)
  • 신중훈 (경기대학교 일반대학원 환경에너지공학과) ;
  • 권동욱 (한국과학기술연구원 미래융합기술본부 물질구조제어연구센터) ;
  • 김거종 (경기대학교 일반대학원 환경에너지공학과) ;
  • 홍성창 (경기대학교 환경에너지공학과)
  • Received : 2017.09.17
  • Accepted : 2017.10.31
  • Published : 2018.02.10


In this study, the effect of physical properties of $Pt/TiO_2$ on $NH_3$-selective catalytic oxidation (SCO) reaction at $200{\sim}350^{\circ}C$ was investigated. CO-chemisoption and BET analysis were carried out to verify physical properties of $Pt/TiO_2$. By characterizing physical properties of $Pt/TiO_2$ with respect to the Pt loading, the metal dispersion degree decreased as a function of the Pt loading amount. Also, the catalyst having a higher metal dispersion showed an excellent conversion efficiency of $NH_3$ to $N_2$. Since the specific surface area of the support affects the metal dispersion, $Pt/TiO_2$ catalysts were prepared using $TiO_2$ with different physical properties. As a result, it was confirmed that the catalyst having a wide specific surface area exhibited a excellent conversion of $NH_3$ to $N_2$.


Grant : 고효율 복합 SCR/AOC 촉매 개발

Supported by : 환경부


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