Site-specific anisotropic assembly of amorphous mesoporous subunits on crystalline metal–organic framework

Minchao Liu, Cheng Shang, Tiancong Zhao, Hongyue Yu, Yufang Kou, Zirui Lv, Mengmeng Hou, Fan Zhang, Qiaowei Li, Dongyuan Zhao and Xiaomin Li ()
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Minchao Liu: Fudan University
Cheng Shang: Fudan University
Tiancong Zhao: Fudan University
Hongyue Yu: Fudan University
Yufang Kou: Fudan University
Zirui Lv: Fudan University
Mengmeng Hou: Fudan University
Fan Zhang: Fudan University
Qiaowei Li: Fudan University
Dongyuan Zhao: Fudan University
Xiaomin Li: Fudan University

Nature Communications, 2023, vol. 14, issue 1, 1-9

Abstract: Abstract As an important branch of anisotropic nanohybrids (ANHs) with multiple surfaces and functions, the porous ANHs (p-ANHs) have attracted extensive attentions because of the unique characteristics of high surface area, tunable pore structures and controllable framework compositions, etc. However, due to the large surface-chemistry and lattice mismatches between the crystalline and amorphous porous nanomaterials, the site-specific anisotropic assembly of amorphous subunits on crystalline host is challenging. Here, we report a selective occupation strategy to achieve site-specific anisotropic growth of amorphous mesoporous subunits on crystalline metal–organic framework (MOF). The amorphous polydopamine (mPDA) building blocks can be controllably grown on the {100} (type 1) or {110} (type 2) facets of crystalline ZIF-8 to form the binary super-structured p-ANHs. Based on the secondary epitaxial growth of tertiary MOF building blocks on type 1 and 2 nanostructures, the ternary p-ANHs with controllable compositions and architectures are also rationally synthesized (type 3 and 4). These intricate and unprecedented superstructures provide a good platform for the construction of nanocomposites with multiple functionalities and understanding of the structure-property-function relationships.

Date: 2023
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DOI: 10.1038/s41467-023-36832-2

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