期刊
SMALL METHODS
卷 3, 期 5, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smtd.201800547
关键词
active sites; catalytic reaction; functionalization; macro-microporous structure; metal-organic frameworks
资金
- National Key R&D Program of China [2017YFA0207201]
- National Natural Science Foundation [21574065, 21604038, 21504043, 21604040, 51702155]
- National Science Foundation for Distinguished Young Scholars [21625401]
- Jiangsu Provincial Funds for Natural Science Foundation [BK20160975, BK20160981, BK20170975]
- Program for Outstanding Young Scholars from the Organization Department of the Communist Party of China Central Committee
- National Key Basic Research Program of China [2015CB932200]
Constructing hierarchical pore structures in metal-organic frameworks (H-MOFs) can significantly enhance their catalytic performance. However, common strategies for preparing H-MOFs only focus on creating hierarchical pores to facilitate the molecular diffusion but neglect the synergistic effect of hierarchical pores with multiactive sites in H-MOFs. Therefore, the development of a suitable strategy with hierarchical pores and multiactive sites in H-MOFs serving as multifunctional and efficient catalysts is highly desired. In this work, a facile strategy is developed to prepare functional nanoparticles (NPs)/MOFs catalysts with a macro-microporous structure (NPs/M-MOFs) and multiactive sites (more NPs and base sites) through template etching and immersion reduction. The as-prepared Pt/M-zeolitic imidazolate framework-8 (ZIF-8) shows high performance in the Knoevenagel condensation-hydrogenation two-steps catalytic reaction, mainly due to the existence of macropores in the ZIF-8 and the exposure of the multiactive sites (more Pt NPs and base sites). This strategy is potentially extendable to other series of MOFs for structuring functional NPs/M-MOFs catalysts that can optimize the performance of catalytic reaction.
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