Abstract
H3PMo12O40 (PMo) catalyst was immobilized on the aminated polystyrene (PS) support as a charge compensating component, by taking advantage of the overall negative charge of [PMo12O 40]3-. It was revealed that PMo catalyst was finely and molecularly dispersed on the PS support via chemical immobilization. The supported H3PMo12O40-polystyrene (PMo-PS) catalyst was applied to the vapor-phase oxidation of methacrolein into methacrylic acid, a typical surface-type reaction. The PMo-PS catalyst exhibited higher conversion of methacrolein and higher selectivity for methacrylic acid than the unsupported PMo catalyst. It is concluded that [PMo12O 40]3- species were chemically and finely immobilized on the PS support as charge matching species, and thus, the PMo-PS catalyst showed an excellent oxidation activity in the model surface-type reaction.
Original language | English |
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Pages (from-to) | 21-25 |
Number of pages | 5 |
Journal | Journal of Molecular Catalysis A: Chemical |
Volume | 248 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2006 Apr 3 |
Keywords
- Chemical immobilization
- Heteropolyacid catalyst
- Methacrolein
- Oxidation
- Polystyrene support
ASJC Scopus subject areas
- Catalysis
- Process Chemistry and Technology
- Physical and Theoretical Chemistry