THE PREPARATION OF NANO SIZE METAL OXIDE CATALYSTS FOR DIRECT DECOMPOSITION OF N2O IN FLUE GASI. PREPARATION OF ANODIZED ALUMINUM OXIDE
Nitrous oxide (N2O) known to have no problems in human health but to be a dangerous environmental pollutant because it contributes to the destruction of stratospheric ozone and the global worming as a greenhouse gas. The yearly increase of nitrous oxide concentration in atmosphere was known to be 0.2-0.3％ and caused by human activities. nitrous oxide causes global warming as a greenhouse gas and the contribution to global warming was known to be 310 times than that of carbon dioxide. Catalytic decomposition of nitrous oxide uses various kinds of catalyst such as metal oxides, zeolites and noble metals dispersed on oxide support, especially alumina. And the activities of catalysts were known to be affected by the properties of support materials. As the general preparation method of catalyst for nitrous oxide decomposition uses impregnation or coating of metal oxide or noble metal on support, the effects of catalyst material property itself, metal oxide or noble metal, on nitrous oxide decomposition were not considered widely. The effects of catalyst property, specifically particle size, on nitrous oxide decomposition were studied using various nano size metal oxide catalysts. As an effort to develop nano size metal oxide catalysts for direct decomposition of N2O in flue gas, the preparation of anodized aluminum oxide was studied to find out the possible utilization as a catalyst support. Anodized aluminum oxide was prepared and copper was deposited on anodized alumina film. The deposition of various metals and metal oxides will be studied further and the activity of N2O decomposition will be studied in future.
N2O Catalyst Anodized aluminum ozide Metal Metal ozide
Sungyoul PARK Mina PARK Bal Raj DESHWAL Ilhyun BAEK Seunghyun MOON
Greenhouse Gas Research Center, Korea Institute of Energy Research, Daejeon, Korea
国际会议
第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)
武汉
英文
352-356
2007-12-01（万方平台首次上网日期，不代表论文的发表时间）