期刊
ADVANCED MATERIALS
卷 30, 期 49, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201803263
关键词
composites; defects; hierarchical pores; metal-organic frameworks; selectivity
类别
资金
- National Key R&D Program of China [2017YFA0207201]
- National Natural Science Foundation of China [21574065, 21504043, 21604038]
- National Science Funds for Distinguished Young Scholars [21625401]
- Jiangsu Provincial Funds for Natural Science Foundation [BK20160975, BK20160993]
- Postdoctoral Science Foundation of China [2016M591837]
- Program for Outstanding Young Scholars from the Organization Department of the CPC Central Committee
- China Scholarship Council
- China National Postdoctoral Council
- U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, Vehicle Technologies Office
- DOE Office of Science [DE-AC02-06CH11357]
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
Nanoparticles@metal-organic frameworks (MOFs) composites have attracted considerable attention in recent years due to the prominent selective catalytic activity. However, it is highly desirable to develop a simple and universal way to settle the trade-off between the catalytic efficiency and selectivity. Herein, by employing the thermal instability of inherent defects, hierarchically porous Pt@UiO-66-NH2, Pt@UiO-66, Pt@ZIF-8, and Au@ZIF-8 are successfully constructed after annealing at an appropriate temperature, respectively. The generated mesopores in the MOFs can be located around the external nanoparticle to retain the MOF shell for catalytic selectivity. Finally, when tested in olefin hydrogenation, Pt@UiO-66-NH2 shows significantly improved catalytic rate and enhanced dynamic selectivity.
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