Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Toluene Catalytic Oxidation by Manganese Oxide : (I) Activity and Characterization

망간 산화물에 의한 톨루엔 촉매 산화 반응 : (I) 촉매 반응 및 특성 평가

  • Cheon Tae-Jin (Department of Environmental Science and Engineering) ;
  • Kim Hye Jin (Department of Environmental Science and Engineering) ;
  • Choi Sung-Woo (Department of Environmental Science and Engineering)
  • Published : 2005.04.01
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Abstract

The catalytic oxidation of toluene in low concentration was investigated over manganese oxide/$\gamma$-A1$_{2}$O$_{3}$ catalysts. As increased manganese loading, the conversion of toluene increased at a lower temperature. The 18.2wt$\%$ Mn/$\gamma$-Al$_{2}$O$_{3}$ appeared to be the most active catalyst. XRD results indicated that most of the catalysts exist as MnO$_{2}$ and Mn$_{2}$O$_{3}$ crystalline phase. After the reaction, the used and the fresh catalysts were characterized by XPS. For the used catalyst, a prominent feature has increased. TPR profiles of 18.2 wt$\%$ Mn/$\gamma$-Al$_{2}$O$_{3}$ changed significantly as the manganese loading increased at a lower temperature.

Keywords

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