Robust Mg(Ca)Zr-Doped Acid–Base Bifunctional Mesoporous Silica and Their Applications in the Deacetalization-Knoevenagel Reaction
| Autor: | Yingqi Chen, Xiaozhong Wang, Yangyang Fang, Liyan Dai, Menglu Cai |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Base (chemistry) 010405 organic chemistry Mesoporous silica 010402 general chemistry Grafting Alkali metal 01 natural sciences 0104 chemical sciences Catalysis Inorganic Chemistry Metal chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium Knoevenagel condensation Physical and Theoretical Chemistry Bifunctional Nuclear chemistry |
| Zdroj: | Inorganic Chemistry. 60:8924-8935 |
| ISSN: | 1520-510X 0020-1669 |
| DOI: | 10.1021/acs.inorgchem.1c00819 |
| Popis: | A series of Mg(Ca)Zr-doped acid-base bifunctional mesoporous silica were synthesized to study the impact of the one-step or two-step impregnation method on material structure. The two-step method seems to be a better way to synthesize metal-based functionalized catalyst and their catalytic performance is investigated using deacetalization-Knoevenagel reaction as the probe reaction. The coexisting dual active sites and suitable designing routes endowed highly efficient (Conv. >99.6%, Sel. >99.8%) and robust stability (10 consecutive cycles) of these materials. The present process succeeded in preparing catalysts decorated with acid-base sites by doping acidic and alkali metal species rather than grafting organic groups. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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