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Preparation and characterization of heteropolyacid/mesoporous carbon catalyst for the vapor-phase 2-propanol conversion reaction |
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| Authors: | Heesoo Kim Pil Kim Kwan-Young Lee Sung Ho Yeom Jongheop Yi In Kyu Song |
| Affiliation: | aSchool of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Shinlim-dong, Kwanak-ku, Seoul 151-744, Korea bDepartment of Chemical and Biological Engineering, Korea University, Annam-dong, Sungbuk-ku, Seoul 136-701, Korea cDepartment of Environmental and Applied Chemical Engineering, KangnungNational University, Kangwondo 210-702, Korea |
| Abstract: | H3PMo12O40 catalyst was chemically immobilized on the surface modified CMK-3 (SM-CMK-3) support as a charge compensating component, by taking advantage of the overall negative charge of PMo12O40]3?. The supported H3PMo12O40/SM-CMK-3 catalyst was characterized to have high surface area (≈1000 m2/g) and relatively large pore volume (0.83 cm3/g). The H3PMo12O40/SM-CMK-3 catalyst was applied to the vapor-phase 2-propanol conversion reaction. The H3PMo12O40/SM-CMK-3 catalyst exhibited higher 2-propanol conversion than the unsupported H3PMo12O40 and the impregnated H3PMo12O40 on CMK-3. Furthermore, the PMo12/SM-CMK-3 catalyst showed the enhanced oxidation activity (acetone formation) and the suppressed acid catalytic activity (propylene formation) compared to the other two catalysts. It is believed that PMo12O40]3? species were chemically and finely immobilized on the SM-CMK-3 support as charge matching species, and thus, the PMo12/SM-CMK-3 catalyst showed an excellent oxidation activity. |
| Keywords: | Heteropolyacid CMK-3 Surface modified CMK-3 Immobilization 2-Propanol |
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