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Water Promotes Melting of a Metal-Organic Framework.
Sørensen, Søren S; Christensen, Anders K R; Bouros-Bandrabur, Elena A; Andersen, Emil S; Christiansen, Heidi F; Lang, Sofie; Cao, Fengming; Jalaludeen, M Faizal Ussama; Christensen, Johan F S; Winters, Wessel M W; Andersen, Bettina P; Nielsen, Anders B; Nielsen, Niels Chr; Ravnsbæk, Dorthe B; Kristensen, Peter K; Yue, Yuanzheng; Smedskjaer, Morten M.
Afiliación
  • Sørensen SS; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
  • Christensen AKR; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
  • Bouros-Bandrabur EA; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
  • Andersen ES; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
  • Christiansen HF; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
  • Lang S; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
  • Cao F; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
  • Jalaludeen MFU; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
  • Christensen JFS; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
  • Winters WMW; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
  • Andersen BP; Department of Chemistry, Aarhus University, Aarhus DK-8000, Denmark.
  • Nielsen AB; Department of Chemistry, Aarhus University, Aarhus DK-8000, Denmark.
  • Nielsen NC; Department of Chemistry, Aarhus University, Aarhus DK-8000, Denmark.
  • Ravnsbæk DB; Interdisciplinary Nanoscience Center (iNANO), Aarhus University, Aarhus DK-8000, Denmark.
  • Kristensen PK; Department of Chemistry, Aarhus University, Aarhus DK-8000, Denmark.
  • Yue Y; Department of Materials and Production, Aalborg University, Aalborg DK-9220, Denmark.
  • Smedskjaer MM; Department of Chemistry and Bioscience, Aalborg University, Aalborg DK-9220, Denmark.
Chem Mater ; 36(6): 2756-2766, 2024 Mar 26.
Article en En | MEDLINE | ID: mdl-38558915
ABSTRACT
Water is one of the most reactive and abundant molecules on Earth, and it is thus crucial to understand its reactivity with various material families. One of the big unknown questions is how water in liquid and vapor forms impact the fast-emerging class of metal-organic frameworks (MOFs). Here, we discover that high-pressure water vapor drastically modifies the structure and hence the dynamic, thermodynamic, and mechanical properties of MOF glasses. In detail, we find that an archetypical MOF (ZIF-62) is extremely sensitive to heat treatments performed at 460 °C and water vapor pressures up to ∼110 bar. Both the melting and glass transition temperatures decrease remarkably (by >100 °C), and simultaneously, hardness and Young's modulus increase by up to 100% under very mild treatment conditions (<20 bar of hydrothermal pressure). Structural analyses suggest water to partially coordinate to Zn in the form of a hydroxide ion by replacing a bridging imidazolate-based linker. The work provides insight into the role of hot-compressed water in influencing the structure and properties of MOF glasses and opens a new route for systematically changing the thermodynamics and kinetics of MOF liquids and thus altering the thermal and mechanical properties of the resulting MOF glasses.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chem Mater Año: 2024 Tipo del documento: Article País de afiliación: Dinamarca Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chem Mater Año: 2024 Tipo del documento: Article País de afiliación: Dinamarca Pais de publicación: Estados Unidos