Alumina-supported catalysts containing different transition metals such as Cu, Cr, Mn, Zn, Co, W were investigated for their activity in the selective oxidation of toluene. Catalytic oxidation of toluene was investigated at atmospheric pressure in a fixed bed flow reactor system over transition metals with Al2O3 catalyst. The result showed the order of catalytic activities for the complete oxidation of toluene was Mn > Cu> Cr> Co> W> Zn for 5wt.% transition metals/Al2O3. Mn/Al2O3 catalysts containing different amount of Mn were characterized by X-ray diffraction spectroscopy for decision of loading amount of metal to alumina. 5 wt.%Mn/Al2O3 catalyst exhibits the highest catalytic activity, over which the toluene conversion was up to 90% at a temperature of 289℃.

Abstract
 1. 서 론
 2. 연구재료 및 방법
  2.1. 연구재료
  2.2. 연구방법
 3. 결과 및 고찰
  3.1. 전이금속별 톨루엔 분해반응
  3.2. Mn-Al2O3의 톨루엔 분해반응
  3.3. Mn-Al2O3의 TPR분석
  3.4. 표면분석결과
 4. 결 론
 참 고 문 헌

• 최성우(계명대학교 환경과학과) | Sung-Woo Choi (Department of Environmental Science and Engineering, Keimyung University) Corresponding author
• 이철규(계명대학교 환경과학과) | Chul-Kyu Lee (Department of Environmental Science and Engineering, Keimyung University)