Metal-organic framework composites: design, synthesis and applications

• Autores: Orysia Zaremba
• Directores de la Tesis: Erlantz Lizundia Fernández (dir. tes.), Stefan Wuttke (codir. tes.), Begoña Bazán Blau (tut. tes.)
• Lectura: En la Universidad del País Vasco - Euskal Herriko Unibertsitatea ( España ) en 2025
• Idioma: inglés
• Programa de doctorado: Programa de Doctorado en Ciencia y Tecnología de Materiales por la Universidad del País Vasco/Euskal Herriko Unibertsitatea
• Materias:
  • Física
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• Resumen

  • Metal-Organic Frameworks (MOFs) have emerged as a ground-breaking class of porous materials since their discovery in 1995. Their remarkable appeal lies in their exceptional chemical and structural versatility, extraordinary porosity and surface area, rich functionalization chemistry and multifunctionality. In spite of the prolific research in MOFs over the past 30 years, the current key is to translate breakthrough performance measured in the laboratory to real-world products. One of the main challenges is the processability of MOF powders and their precise shaping into macro-objects. Composite manufacturing stands out as an alternative way to address the issue of MOF processability and impart new and/or synergistic properties. Another branch of research that has attracted a lot of scientific attention is the synthesis of MOF biocomposites, where MOF serves as a platform for the incorporation of biomolecules to protect them from external stressors. This dissertation focuses on two main objectives: (1) the development of enzyme@MOF biocomposites by enzyme entrapment during in situ MOF synthesis; and (2) the shaping of stable MOFs with graphene oxide as a structural matrix into intricate geometries using a novel 3D printing method - liquid-in-liquid printing. In the context of the enzyme@MOF biocomposite research, a room-temperature green synthesis of MOFs was developed to efficiently entrap enzymes in MOFs and preserve the enzyme activity. The catalytic activity of the resulting enzyme@MOF biocomposites and pure enzymes was assessed. Regarding to the shaping of MOF composites, first, the thermal and chemical stability of MOFs was studied, and then the stable MOFs were combined with a graphene oxide to print MOF composites into flexible filamentous aerogels with hierarchical porosity. The developed aerogels were evaluated for CO2 adsorption.