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Vismara R, Terruzzi S, Maspero A, Grell T, Bossola F, Sironi A, Galli S, Navarro JAR, Colombo V. CO 2 Adsorption in a Robust Iron(III) Pyrazolate-Based MOF: Molecular-Level Details and Frameworks Dynamics From Powder X-ray Diffraction Adsorption Isotherms. Adv Mater 2024; 36:e2209907. [PMID: 36735860 DOI: 10.1002/adma.202209907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/10/2023] [Indexed: 06/18/2023]
Abstract
Understanding adsorption processes at the molecular level, with multi-technique approaches, is nowadays at the frontier of porous materials research. In this work it is shown that with a proper data treatment, in situ high-resolution powder X-ray diffraction (HR-PXRD) at variable temperature and gas pressure can reveal atomic details of the accommodation sites, the framework dynamics as well as thermodynamic information (isosteric heat of adsorption) of the CO2 adsorption process in the robust iron(III) pyrazolate-based MOF Fe2(BDP)3 [H2BDP = 1,4-bis(1H-pyrazol-4-yl)benzene]. Highly reliable "HR-PXRD adsorption isotherms" can be constructed from occupancy values of CO2 molecules. The "HR-PXRD adsorption isotherms" accurately match the results of conventional static and dynamic gas sorption experiments and Monte Carlo simulations. These results are indicative of the impact of the molecular-level behavior on the bulk properties of the system under study and of the potential of the presented multi-technique approach to understand adsorption processes in metal-organic frameworks.
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Affiliation(s)
- Rebecca Vismara
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 11, Como, 22100, Italy
- Departamento de Química Inorgánica, Universidad de Granada, Av. Fuentenueva S/N, Granada, 18071, Spain
| | - Stephanie Terruzzi
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, Milano, 20133, Italy
| | - Angelo Maspero
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 11, Como, 22100, Italy
| | - Toni Grell
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, Milano, 20133, Italy
| | - Filippo Bossola
- CNR - Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Via Golgi 19, Milan, 20133, Italy
| | - Angelo Sironi
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, Milano, 20133, Italy
| | - Simona Galli
- Dipartimento di Scienza e Alta Tecnologia, Università degli Studi dell'Insubria, Via Valleggio 11, Como, 22100, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, Via Giusti 9, Firenze, 50121, Italy
| | - Jorge A R Navarro
- Departamento de Química Inorgánica, Universidad de Granada, Av. Fuentenueva S/N, Granada, 18071, Spain
| | - Valentina Colombo
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, Milano, 20133, Italy
- CNR - Istituto di Scienze e Tecnologie Chimiche "Giulio Natta", Via Golgi 19, Milan, 20133, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali, Via Giusti 9, Firenze, 50121, Italy
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