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Issue 11, 2017
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HKUST-1 coatings on laser-microperforated brass supports for water adsorption

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This work describes the preparation of HKUST-1 layers on brass supports by a thermal gradient approach. Supports were perforated using laser irradiation to create 30–50 μm microholes. Perforation improved the adhesion and loading of the MOF. The microhole environment generated during the laser treatment led to well-anchored coatings. Two distinct samples were synthesized with the reaction temperature (100 and 150 °C) as the main difference. A continuous HKUST-1 coating was only achieved with the higher temperature of 150 °C. However, the microholes were totally filled with crystals in both samples reaching weight fractions of crystallized material of 2.4 and 6.6 wt%. PXRD and N2 physisorption studies confirmed the formation of HKUST-1 crystals with high quality (SBET = 1105 m2 g−1). Water adsorption was performed on both samples, showing the main sorption event below a relative pressure of 0.4 and obtaining uptakes (0.48 and 0.45 g g−1 at 293 K and p/p0 = 0.9) among the reported values for HKUST-1 powder. The HKUST-1 properties and the enhanced MOF–support interaction make these coatings candidates for use in gas storage and separation, sensing and water-based adsorption applications, such as chillers or heat pumps.

Graphical abstract: HKUST-1 coatings on laser-microperforated brass supports for water adsorption

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Publication details

The article was received on 01 Dec 2016, accepted on 10 Jan 2017 and first published on 10 Jan 2017

Article type: Paper
DOI: 10.1039/C6CE02490D
CrystEngComm, 2017,19, 1470-1478

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    HKUST-1 coatings on laser-microperforated brass supports for water adsorption

    A. Perea-Cachero, J. Dechnik, R. Lahoz, C. Janiak, C. Téllez and J. Coronas, CrystEngComm, 2017, 19, 1470
    DOI: 10.1039/C6CE02490D

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