Journal
NATURE COMMUNICATIONS
Volume 11, Issue 1, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41467-020-18776-z
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Funding
- Australian Research Council
- Australian National Fabrication Facility-Queensland Node (ANFFQ)
- Microscopy Australia
- National Natural Science Foundation of China [NSFC 21905092, 51908218, 21705107, 22075085, 22074044]
- Shanghai Science and Technology Foundation - China Postdoctoral Science Foundation [19JC1412100]
- Fundamental Research Funds for the Central Universities
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Assembly of different metal-organic framework (MOF) building blocks into hybrid MOF-on-MOF heterostructures is promising in chemistry and materials science, however the development of ternary MOF-on-MOF heterostructures with controllable architectural and compositional complexity is challenging. Here we report the synthesis of three types of ternary MOF-on-MOF heterostructures via a multiple selective assembly strategy. This strategy relies on the choice of one host MOF with more than one facet that can arrange the growth of a guest MOF, where the arrangement is site-selective without homogenous growth of guest MOF or homogenous coating of guest on host MOF. The growth of guest MOF on a selected site of host MOF in each step provides the opportunity to further vary the combinations of arrangements in multiple steps, leading to ternary MOF-on-MOF heterostructures with tunable complexity. The developed strategy paves the way towards the rational design of intricate and unprecedented MOF-based superstructures for various applications. Assembly of MOF-on-MOF hybrids with complex structures and properties is of interest, but achieving sophisticated ternary heterostructures is challenging. Here, the authors synthesize three types of ternary MOF-on-MOF heterostructures with tunable complexity via a multiple selective assembly strategy.
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