| 학회 | 한국화학공학회 |
| 학술대회 | 2021년 가을 (10/27 ~ 10/29, 광주 김대중컨벤션센터) |
| 권호 | 27권 2호, p.1189 |
| 발표분야 | [특별 심포지엄] 한국-대만-일본 공동 심포지엄 |
| 제목 | Physical properties of metal precursors in the bulk and nano spaces for design of supercritical fluid deposition processes |
| 초록 | The deposition of metal particles on porous supports using supercritical CO2 has attracted much attention as a method for preparing supported catalysts because the metal particles can be dispersed in the pore structure. Physical properties of metal precursors in the bulk and nano spaces in supercritical CO2 are important to efficiently design the supported catalyst using the supercritical CO2 deposition method. In this study, therefore, the solubility (bulk space) and adsorption equilibria (nano space) of metal precursors onto mesoporous materials in supercritical CO2 were investigated. A thermodynamic model using the PC-SAFT (perturbed-chain statistical associating fluid theory) equation of state was applied to predict the solubility of various acetylacetonate-type metal precursors in supercritical CO2. The adsorption equilibria of the metal precursors onto mesoporous silica materials in supercritical CO2 were also measured and modeled using a thermodynamic adsorption model. The models could reproduce the physical properties in supercritical CO2, which can be useful for designing the supercritical fluid deposition processes. |
| 저자 | Ikuo USHIKI |
| 소속 | Hiroshima Univ. |
| 키워드 | Solubility; Adsorption; Supercritical CO2 |
| 원문파일 | 초록 보기 |
