Construction of angstrom-scale ion channels with versatile pore configurations and sizes by metal-organic frameworks

Xingya Li; Gengping Jiang; Meipeng Jian; Chen Zhao; Jue Hou; Aaron W Thornton; Xinyi Zhang; Jefferson Zhe Liu; Benny D Freeman; Huanting Wang; Lei Jiang; Huacheng Zhang

doi:10.1038/s41467-023-35970-x

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Construction of angstrom-scale ion channels with versatile pore configurations and sizes by metal-organic frameworks

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Construction of angstrom-scale ion channels with versatile pore configurations and sizes by metal-organic frameworks

Xingya Li, Gengping Jiang, Meipeng Jian, Chen Zhao, Jue Hou, Aaron W Thornton, Xinyi Zhang, Jefferson Zhe Liu, Benny D Freeman, Huanting Wang, …

Nature communications, Vol.14, 286

18/01/2023

DOI: https://doi.org/10.1038/s41467-023-35970-x

PMID: 36653373

Appears in Recent Faculty of Science and Engineering Publications

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Abstract

Metal–organic frameworks

Organic–inorganic nanostructures

Controllable fabrication of angstrom-size channels has been long desired to mimic biological ion channels for the fundamental study of ion transport. Here we report a strategy for fabricating angstrom-scale ion channels with one-dimensional (1D) to three-dimensional (3D) pore structures by the growth of metal-organic frameworks (MOFs) into nanochannels. The 1D MIL-53 channels of flexible pore sizes around 5.2 × 8.9 Å can transport cations rapidly, with one to two orders of magnitude higher conductivities and mobilities than MOF channels of hybrid pore configurations and sizes, including Al-TCPP with 1D ~8 Å channels connected by 2D ~6 Å interlayers, and 3D UiO-66 channels of ~6 Å windows and 9 - 12 Å cavities. Furthermore, the 3D MOF channels exhibit better ion sieving properties than those of 1D and 2D MOF channels. Theoretical simulations reveal that ion transport through 2D and 3D MOF channels should undergo multiple dehydration-rehydration processes, resulting in higher energy barriers than pure 1D channels. These findings offer a platform for studying ion transport properties at angstrom-scale confinement and provide guidelines for improving the efficiency of ionic separations and nanofluidics.

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Title: Construction of angstrom-scale ion channels with versatile pore configurations and sizes by metal-organic frameworks
Creators: Xingya Li - Australian Regenerative Medicine Institute
Gengping Jiang - Wuhan University of Science and Technology
Meipeng Jian - Department of Chemical and Biological Engineering, Monash University, Clayton, VIC, 3800, Australia
Chen Zhao - Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
Jue Hou - Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
Aaron W Thornton - CSIRO
Xinyi Zhang - Hubei University
Jefferson Zhe Liu - Department of Mechanical Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia
Benny D Freeman - Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712, USA
Huanting Wang - Department of Chemical and Biological Engineering, Monash University, Clayton, VIC, 3800, Australia
Lei Jiang - Monash University
Huacheng Zhang - Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia. huacheng.zhang@rmit.edu.au
Publication Details: Nature communications, Vol.14, 286
Publisher: Nature Publishing Group
Grant note: 21905215 / National Natural Science Foundation of China (National Science Foundation of China).
Identifiers: 991013079853602368
Academic Unit: Faculty of Science and Engineering; Science
Language: English
Resource Type: Journal article

Construction of angstrom-scale ion channels with versatile pore configurations and sizes by metal-organic frameworks

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