High and reversible SO2 capture by a chemically stable Cr(III)-based MOF

Eva Martínez-Ahumada; Mariana L. Díaz-Ramírez; Hugo A. Lara-García; Daryl R. Williams; Vladimir Martis; Vojtech Jancik; Enrique Lima; Ilich A. Ibarra

doi:10.1039/C9TA13524C

High and reversible SO₂ capture by a chemically stable Cr(iii)-based MOF†

Eva Martínez-Ahumada,‡^a Mariana L. Díaz-Ramírez,‡^a Hugo A. Lara-García,^b Daryl R. Williams,^c Vladimir Martis,^d Vojtech Jancik,

^ef Enrique Lima*^a and Ilich A. Ibarra

*^a

Author affiliations

* Corresponding authors

^a Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyoacán, Ciudad de México, Mexico
E-mail: lima@iim.unam.mx, argel@unam.mx
Fax: +52(55) 5622-4595

^b Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica s/n, CU, Coyoacán, Ciudad de México, Mexico

^c Surfaces and Particle Engineering Laboratory (SPEL), Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK

^d Surface Measurement Systems, Unit 5, Wharfside, Rosemont Road, London HA0 4PE, UK

^e Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México, Mexico

^f Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carr. Toluca-Atlacomulco Km 14.5, Toluca, Estado de México 50200, Mexico

Abstract

Partially fluorinated MIL-101(Cr) shows high SO₂ capture (up to 18.4 mmol g⁻¹ at 298 K and up to 1 bar), chemical stability towards dry and humid SO₂ and an outstanding cycling performance with facile regeneration. In situ DRIFT spectroscopy demonstrated the preferential adsorption sites within MIL-101(Cr)-4F(1%).

This article is part of the themed collections: Celebrating Latin American Talent in Chemistry and Celebrating our 2020 Prize and Award winners

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Article information

DOI: https://doi.org/10.1039/C9TA13524C
Article type: Communication
Submitted: 10 Dec 2019
Accepted: 09 Apr 2020
First published: 10 Apr 2020

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J. Mater. Chem. A, 2020,8, 11515-11520

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High and reversible SO₂ capture by a chemically stable Cr(III)-based MOF

E. Martínez-Ahumada, M. L. Díaz-Ramírez, H. A. Lara-García, D. R. Williams, V. Martis, V. Jancik, E. Lima and I. A. Ibarra, J. Mater. Chem. A, 2020, 8, 11515 DOI: 10.1039/C9TA13524C

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Journal of Materials Chemistry A