Dual-engine-driven synthesis of unsaturated esters over channel-expanding Cu-Cs catalysts.

ABSTRACT: This study presents a one-step catalytic synthesis of unsaturated esters (methyl acrylate, MA; methyl methacrylate, MMA) from methanol (MeOH, C1 source) and methyl acetate (MAc) via a Cu-Cs dual-engine-driven (DED) system that integrates four sequential steps-dehydrogenation, aldol condensation, hydrogenation, and secondary aldol condensation. The Cu-engine facilitates proton transfer by capturing protons during MeOH dehydrogenation and donating them in methyl acrylate (MA) hydrogenation, while the Cs-engine activates saturated esters for formaldehyde-mediated aldol condensation. Through systematic optimization of Cu loading methods, deposition sequences, and Cu/Cs ratios, we developed a silicon carrier channel-expanding strategy, enlarging mesopores from 14 nm to 20 nm (30% specifi

SUBMITTER: Fan J 

PROVIDER: S-EPMC12168927 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature