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Microfluidic Synthesis of Uniform Single-Crystalline MOF Microcubes with Hierarchical Porous Structure

Abstract

Creating hierarchical porosity in MOFs and controlling their size and morphology have emerged an efficient means for achieving significant improvement of MOFs properties, and are crucial for facilitating practical implementation of their various applications. Although important advances in this respect have been made, the realization of hierarchical pore structure in single crystalline MOF particle with controlled size and shape is still challenge, but highly desirable. In this work, based on droplet-based microfluidics in conjunction with evaporative crystallization, an efficient approach to large-scale synthesis of uniform single-crystalline HKUST-1 particles with hierarchical pore structure is presented. It is found that the MOF crystallization in confined droplets could generate not only monodisperse single-crystalline microcubes with engraved rich porous texture including bimodal or trimodal pore structure, but also the size and porosity of the resultant cubes as well as the introduced meso- or macropore size could be widely tailored by varying preparation conditions. Importantly, through simple addition of active species into the formed droplets the functionalization of the resulting pore structured HKUST-1 cubes could be facilely realized, affording a series of high-performance functional nanomaterials.

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Publication details

The article was received on 09 Feb 2018, accepted on 12 Apr 2018 and first published on 13 Apr 2018


Article type: Paper
DOI: 10.1039/C8NR01219A
Citation: Nanoscale, 2018, Accepted Manuscript
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    Microfluidic Synthesis of Uniform Single-Crystalline MOF Microcubes with Hierarchical Porous Structure

    G. Li, J. Cui, N. Gao, X. Yin, W. Zhang, Y. Liang, L. Tian, K. Zhou and S. Wang, Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR01219A

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