Simon Krause

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Articles

Strategies to achieve reproducible synthesis of phase-pure Zr-porphyrin metal-organic frameworks - Communications Materials

Dec 9, 2024 | nature.com | Simon Krause |Bettina V. Lotsch

AbstractPorphyrin-based metal-organic frameworks (MOFs) are gaining traction for various applications due to their sorption, optoelectronic and catalytic properties. MOFs with Zr-based nodes constitute a particularly robust and versatile class of MOFs in which incorporation of metals into the porphyrin core allows further tuning of their physico-chemical properties. However, significant challenges regarding the phase-pure synthesis of Zr-porphyrin MOFs have slowed down progress in the field.
Dynamic two-dimensional covalent organic frameworks - Nature Chemistry

May 3, 2024 | nature.com | Florian Auras |Volodymyr Bon |Simon M. Vornholt |Simon Krause |Karena Chapman |Stefan Kaskel | +1 more

AbstractPorous covalent organic frameworks (COFs) enable the realization of functional materials with molecular precision. Past research has typically focused on generating rigid frameworks where structural and optoelectronic properties are static. Here we report dynamic two-dimensional (2D) COFs that can open and close their pores upon uptake or removal of guests while retaining their crystalline long-range order.
Functional dynamics in framework materials - Communications Chemistry

Jul 14, 2023 | nature.com | Simon Krause

AbstractDynamic crystalline materials have emerged as a unique category of condensed phase matter that combines crystalline lattice with components that display dynamic behavior in the solid state. This has involved a range of materials incorporating dynamic functional units in the form of stimuli-responsive molecular switches and machines, among others.
On the role of history-dependent adsorbate distribution and metastable states in switchable mesoporous metal-organic frameworks - Nature Communications

Jun 3, 2023 | nature.com | Volodymyr Bon |Simon Krause |Stefan Kaskel

AbstractA unique feature of metal-organic frameworks (MOFs) in contrast to rigid nanoporous materials is their structural switchabilty offering a wide range of functionality for sustainable energy storage, separation and sensing applications. This has initiated a series of experimental and theoretical studies predominantly aiming at understanding the thermodynamic conditions to transform and release gas, but the nature of sorption-induced switching transitions remains poorly understood.