Effective and Selective Catalysts for Cinnamaldehyde Hydrogenation: Hydrophobic Hybrids of Metal-Organic Frameworks, Metal Nanoparticles, and Micro- and Mesoporous Polymers
| Autor: | Wenping Hu, Xiaotao Zhang, Zhiyong Tang, Kuo Yuan, Huanli Dong, Xiong Gao, Dawei Wang, Ye Zou, Tianqun Song |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Cinnamyl alcohol
010405 organic chemistry Chemistry Nanoparticle General Medicine 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Heterogeneous catalysis 01 natural sciences Catalysis Cinnamaldehyde 0104 chemical sciences chemistry.chemical_compound Chemical engineering Metal-organic framework 0210 nano-technology Selectivity Mesoporous material |
| Zdroj: | Angewandte Chemie (International ed. in English). 57(20) |
| ISSN: | 1521-3773 |
| Popis: | As for heterogeneous catalysis, the activity and selectivity are two key factors for evaluating catalysts. Metal-organic frameworks (MOFs) as selectivity regulators for catalytic reaction have attracted much attention, especially MOFs and metal nanoparticles (NPs) shelled structures, e.g., MOFs@NPs@MOFs. Nevertheless, the hydrophilic MOFs shell is challenging to gather hydrophobic reactants. Here, we innovate a new and viable approach to solve this problem. By employing conjugated micro- and mesoporous polymers with iron(Ⅲ) porphyrin (FeP-CMPs) as the new shell, MIL-101@Pt@FeP-CMP was fabricated firstly, which not only is hydrophobic and porous to enrich reactants, but also possesses iron sites to activate C=O bond and thereby regulate the selectivity for cinnamyl alcohol in hydrogenation of cinnamaldehyde. Interestingly, MIL-101(Cr)@Pt@FeP-CMPsponge can reach ultrahigh turnover frequency (TOF) as high as 1516.1 h-1 with 97.3 % selectivity towards cinnamyl alcohol and 97.6 % conversion. The results open up a new avenue for decorating and protecting MOFs and will play an important role in both academia and industry. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text