Structural Deterioration of Well‐Faceted MOFs upon H2S Exposure and Its Effect in the Adsorption Performance
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Título: | Structural Deterioration of Well‐Faceted MOFs upon H2S Exposure and Its Effect in the Adsorption Performance |
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Autor/es: | Reljic, Snezana | Broto‐Ribas, Anna | Cuadrado-Collados, Carlos | Jardim, Erika de Oliveira | Maspoch, Daniel | Imaz, Inhar | Silvestre-Albero, Joaquín |
Grupo/s de investigación o GITE: | Materiales Avanzados | Laboratorio de Nanotecnología Molecular (NANOMOL) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Acid exposure | H2S | High-pressure | MOFs | Structural stability |
Área/s de conocimiento: | Química Inorgánica |
Fecha de publicación: | 18-dic-2020 |
Editor: | Wiley-VCH GmbH |
Cita bibliográfica: | Chemistry - A European Journal. 2020, 26(71): 17110-17119. https://doi.org/10.1002/chem.202002473 |
Resumen: | The structural deterioration of archetypical, well‐faceted metal–organic frameworks (MOFs) has been evaluated upon exposure to an acidic environment (H2S). Experimental results show that the structural damage highly depends on the nature of the hybrid network (e.g., softness of the metal ions, hydrophilic properties, among others) and the crystallographic orientation of the exposed facets. Microscopy images show that HKUST‐1 with well‐defined octahedral (111) facets is completely deteriorated, ZIF‐8 with preferentially exposed (110) facets exhibits a large external deterioration with the development of holes or cavities in the mesoporous range, whereas UiO‐66‐NH2 with (111) exposed facets, and PCN‐250 with (100) facets does not reflect any sign of surface damage. Despite the selectivity in the external deterioration, X‐ray diffraction and gas adsorption measurements confirm that indeed all MOFs suffer an important internal deterioration, these effects being more severe for MOFs based on softer cations (e.g., Cu‐based HKUST‐1 and Fe‐based PCN‐250). These structural changes have inevitable important effects in the final adsorption performance for CO2 and CH4 at low and high pressures. |
Patrocinador/es: | JSA would like to acknowledge financial support from the MINECO (Project MAT2016-80285-p). I.I. and D.M. would like to acknowledge financial support from the Spanish MINECO (Project RTI2018-095622-B-100), and Catalan AGAUR (Project 2017 SGR 238), the ERC, under the EU-FP7 (ERC-Co 615954) and the CERCA Program/Generalitat de Catalunya. ICN2 is supported by the Severo Ochoa Program from the Spanish MINECO (Grant No. SEV-2017-0706). |
URI: | http://hdl.handle.net/10045/111165 |
ISSN: | 0947-6539 (Print) | 1521-3765 (Online) |
DOI: | 10.1002/chem.202002473 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2020 Wiley-VCH GmbH |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1002/chem.202002473 |
Aparece en las colecciones: | INV - NANOMOL - Artículos de Revistas Investigaciones financiadas por la UE INV - LMA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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Reljic_etal_2020_ChemEurJ_final.pdf | Versión final (acceso restringido) | 2,13 MB | Adobe PDF | Abrir Solicitar una copia |
Reljic_etal_2020_ChemEurJ_accepted.pdf | Accepted Manuscript (acceso abierto: 29 jul. 2021) | 2,1 MB | Adobe PDF | Abrir Vista previa |
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