화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.29, No.1, 22-27, February, 2018
DOI10.14478/ace.2017.1095  Export Citation
Pt/TiO2 촉매의 활성금속 분산도가 NH3-SCO 반응활성에 미치는 영향
Influence of Active Metal Dispersion over Pt/TiO2 Catalyst on NH3-SCO Reaction Activity
신중훈, 권동욱1, 김거종, 홍성창2, †
  • 경기대학교 일반대학원 환경에너지공학과
  • 1한국과학기술연구원 미래융합기술본부 물질구조제어연구센터
  • 2경기대학교 환경에너지공학과
Jung Hun Shin, Dong Wook Kwon1, Geo Jong Kim, and Sung Chang Hong2, †
  • Department of Environmental Energy Engineering, Graduate school of Kyonggi University, 94 San, Iui-dong, Gwanggyosan-Ro, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do 16227, Korea
  • 1Materials Architecturing Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea
  • 2Department of Environmental Energy Engineering, Kyonggi University, 94 San, Iui-dong, Gwanggyosan-Ro, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do 16227, Korea
E-mail:
초록
본 연구에서는, 200~350 ℃의 온도범위에서 Pt/TiO2의 물리적 특성이 NH3-selective catalytic oxidation (SCO) 반응에 미치는 영향을 확인하였다. CO-chemisorption, BET 분석은 Pt/TiO2 촉매의 물리적 특성을 확인하기 위하여 수행되었다. Pt 함량에 따른 Pt/TiO2의 물리적 특성을 확인한 결과, Pt의 함량이 적을수록 분산도가 높았다. 또한 분산도가 높은 촉매는 N2로의 전환율이 우수한 것을 확인하였다. 지지체의 비표면적은 분산도에 영향을 미치기 때문에, 물리적 특성이 다른 TiO2를 이용하여 Pt/TiO2 촉매를 제조하였다. 그 결과, 비표면적이 넓은 촉매가 N2로의 전환율이 우수한 것을 확인하였다.
In this study, the effect of physical properties of Pt/TiO2 on NH3-selective catalytic oxidation (SCO) reaction at 200~350 ℃ was investigated. CO-chemisoption and BET analysis were carried out to verify physical properties of Pt/TiO2. By characterizing physical properties of Pt/TiO2 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 NH3 to N2. Since the specific surface area of the support affects the metal dispersion, Pt/TiO2 catalysts were prepared using TiO2 with different physical properties. As a result, it was confirmed that the catalyst having a wide specific surface area exhibited a excellent conversion of NH3 to N2.
Keywords:NH3;PM2.5;catalyst;selective catalytic oxidation;Pt
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