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Electroforming of a metal organic framework on porous copper hollow fibers

Abstract

Porous copper hollow fibers have been used, for the first time, as both a support structure and as a metal source for preparing thin metal organic framework (Cu-BTC) film via a fast, facile and direct electrochemical route. Focus is on the effects of the presence of a supporting electrolyte and the magnitude of the applied electrical potential on the formation and the morphology of the films. In the absence of a supporting electrolyte, and at low potential, more uniform films with smaller particles are obtained. This is attributed to the more pronounced electric-field driven mass transport of the organic ligand from the liquid bulk towards the surface of electrode combined with the slow dissolution of copper due to the low overpotential. In the presence of a supporting electrolyte the ligand transport is much slower; this results in the formation of less homogeneous films and the growth of metal organic framework crystals in the liquid bulk. The facile formation of thin metal organic framework films on metal porous hollow fibers with high surface area to volume ratio is an important step towards various applications, including membranes, microfluidic devices, sensors and heterogeneous catalysts.

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Publication details

The article was received on 23 Nov 2018, accepted on 14 Apr 2019 and first published on 16 Apr 2019


Article type: Paper
DOI: 10.1039/C8TA11296G
Citation: J. Mater. Chem. A, 2019, Accepted Manuscript

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    Electroforming of a metal organic framework on porous copper hollow fibers

    Ö. H. Demirel, T. Rijnaarts, P. de Wit, J. A. Wood and N. E. Benes, J. Mater. Chem. A, 2019, Accepted Manuscript , DOI: 10.1039/C8TA11296G

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