학회 | 한국화학공학회 |
학술대회 | 2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
권호 | 13권 2호, p.2534 |
발표분야 | 촉매 및 반응공학 |
제목 | Characterization and toluene oxidation of perovskite-type oxide catalyst LaCoO3: Effect of different preparation methods |
초록 | Perovskite-type oxide LaCoO3 as a substitute of noble metal catalysts has high potential for their use in various oxidations. Perovskite structure require high calcination temperature (>900°C) for forming perovskite structure and hence yield perovskite-type oxides with low surface area (<2 m2/g) due to sintering. In this research, the effect of precursor, calcinations temperature and pH of different preparation methods for the perovskite-type oxide LaCoO3 was studied. LaCoO3 obtained was characterized with XRD, N2-adsorption/desorption, and SEM. LaCoO3 was applied as a catalyst for oxidation of toluene. Catalytic performance of LaCoO3 was compared with those of LaCoO3. The LaCoO3 catalyst to have high surface area and accurate perovskite structure was the most active. |
저자 | 서명지, 임선기 |
소속 | 한국과학기술원 |
키워드 | perovskite; catalyst; toluene oxidation |
원문파일 | 초록 보기 |