| 학회 | 한국화학공학회 |
| 학술대회 | 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 | 16권 2호, p.2210 |
| 발표분야 | 촉매 및 반응공학 |
| 제목 | Preparation of metal catalysts for polymer electrolyte membrane fuel cellusing supercritical carbon dioxide |
| 초록 | Synthesis of nano-sized metal catalyst particles has attracted a great deal of attention due to their unique physical and chemical properties, which makes them suitable for wide range of industrial applications. Nano size metal particles of controllable and uniform size contained in an appropriate support find uses in areas of catalysis, microelectronics, magnetics, electrochemistry and optics. In recent years, the synthesis of nanomaterials using supercritical fluids has become increasingly popular. Metal particles on a carbon based substrate were synthesized by using a supercritical fluid. The substrates were impregnated with an organometallic precursor from a carbon dioxide solution in condition above its critical point. Adsorption process is performed at different pressure, temperatur and process time. Reduction process is performed under supercritical condition and atmosphere condition with H2 or N2. The results of experiments were characterized by X-ray diffraction. Weight ratio. Resultsconfirmed that the deposition using scCO2 has a high surface area. |
| 저자 | 김경환, 임종성, 유기풍 |
| 소속 | 서강대 |
| 키워드 | supercritical fluid; scCO2; fuel cell catalyst; cobalt |
| 원문파일 | 초록 보기 |
