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Issue 7, 2020
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Enhancing the anti-corrosion performance of ZIF-8-based coatings via microstructural optimization

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Abstract

Although still in their infancy, MOF-based coatings have shown great potential for their applications as anti-corrosion coatings. Nevertheless, an in-depth investigation of the influence of morphology on their anti-corrosion performance has rarely been conducted. In this study, ZIF-8-based anti-corrosion coatings with diverse microstructures were prepared by the facile hydrothermal growth of ZnAl–NO3 LDH buffer layers followed by solvothermal treatment with ZIF-8 precursor solutions with different recipes. DC polarization tests demonstrated that the precursor solution containing only 2-methylimidazole led to the formation of ZIF-8–ZnAl–NO3 LDH composite coatings with superior anti-corrosion performances probably due to the reduced grain boundary defect density.

Graphical abstract: Enhancing the anti-corrosion performance of ZIF-8-based coatings via microstructural optimization

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Supplementary files

Article information


Submitted
03 Dec 2019
Accepted
20 Jan 2020
First published
20 Jan 2020

New J. Chem., 2020,44, 2941-2946
Article type
Paper

Enhancing the anti-corrosion performance of ZIF-8-based coatings via microstructural optimization

M. Zhang and Y. Liu, New J. Chem., 2020, 44, 2941
DOI: 10.1039/C9NJ05998A

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