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Preparation of Methyl Acrylate through Catalytic Aldol Condensation over Cs/TS-1 Catalysts
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| 其它 | It is of great importance to design heterogeneous catalysts for aldol condensation of methyl acetate and formaldehyde to realize the green and sustainable production of methyl acrylate. Herein, Cs-based heterogeneous aldol condensation catalysts via incipient wetness impregnation were optimized through enhanced interaction between supports (amorphous SiO2, silicalite-1, and TS-1) and Cs sites. By various characterization techniques such as IR–OH and 133Cs magic angle spinning NMR, it was proven that Cs/TS-1 exhibited the strongest interaction between TS-1 and Cs species with the lowest preservation of −OH groups and the largest shift toward a higher field in NMR spectra after Cs modification as well as the highly dispersed Cs sites. Correspondingly, Cs/TS-1 shows the best catalytic performance in the gas aldol condensation of methyl acetate with formaldehyde. Importantly, it is effective to verify that the better catalytic pe |
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(2025-6-4)
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