Abstract
Abstract Hierarchical MFI/MCM-41 composites (HMCs) had been synthesized by a one-step hydrothermal method using C 22-6 N as single structure directing agent. The results indicated that the hierarchical mesoporous-microporous composites had been synthesized successfully with ordered hexagonal mesopores and partially crystallized MFI zeolite domains. These materials are characterized by a sharp distribution of mesopore diameters and high specific surface area. Catalytic tests in Claisen-Schmidt condensation of bulky reactants showed that the samples possessed outstanding performance over conventional MFI zeolite and MCM-41, making them promising acid catalysts for catalytic reaction involving large organic molecules.
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