期刊
NANO RESEARCH
卷 14, 期 2, 页码 444-449出版社
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-020-3077-1
关键词
metal nanoparticles; room temperature and rapid synthesis; PCN-224; Ostwald ripening
类别
资金
- National Natural Science Foundation of China [21701187, 21701160]
- Natural Science Basic Research Program of Shaanxi [2020JQ-142]
- Fundamental Research Funds for the Central Universities [31020180QD115]
This study successfully prepared a functional and stable porphyrinic metal-organic framework (MOF), PCN-224-RT, as a host for encapsulating metal nanoparticles, thereby avoiding the agglomeration of nanoparticles and providing new possibilities for heterogeneous catalysis.
While metal nanoparticles (NPs) have shown great promising applications as heterogeneous catalysts, their agglomeration caused by thermodynamic instability is detrimental to the catalytic performance. To tackle this hurdle, we successfully prepared a functional and stable porphyrinic metal-organic framework (MOF), PCN-224-RT, as a host for encapsulating metal nanoparticles by direct stirring at room temperature. As a result, Pt@PCN-224-RT composites with well-dispersed Pt NPs can be constructed by introducing pre-synthesized Pt NPs into the precursor solution of PCN-224-RT. Of note, the rapid and simple stirring method in this work is more in line with the requirements of environmental friendly and industrialization compared with traditional solvothermal methods.
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