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Confined Water Cluster Formation in Water Harvesting by Metal–Organic Frameworks: CAU-10-H versus CAU-10-CH₃

van der Veen, M.A. (author), Canossa, S. (author), Wahiduzzaman, Mohammad (author), Nenert, Gwilherm (author), Frohlich, Dominik (author), Rega, D. (author), Reinsch, Helge (author), Shupletsov, Leonid (author), Markey, Karen (author)

Several metal–organic frameworks (MOFs) excel in harvesting water from the air or as heat pumps as they show a steep increase in water uptake at 10–30 % relative humidity (RH%). A precise understanding of which structural characteristics govern such behavior is lacking. Herein, CAU-10-H and CAU-10-CH₃ are studied with -H, -CH<sub>3...

journal article 2023

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Functional materials for MEMS based gas sensors

Ramachandrappa Venkatesh, M. (author)

A MEMS gas sensor consists of a transducer, mainly a resistive or capacitive transducer coated with a thin film of specific functional materials. Functional materials can change their electrical, optical, magnetic, or mechanical properties based on the stimuli received. In a chemi-resistive or chemi-capacitive gas sensing system, thin film of...

doctoral thesis 2022

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The Influence of UiO-66 Metal–Organic Framework Structural Defects on Adsorption and Separation of Hexane Isomers

Sławek, Andrzej (author), Jajko, Gabriela (author), Ogorzały, Karolina (author), Dubbeldam, David (author), Vlugt, T.J.H. (author), Makowski, Wacław (author)

In this work, adsorption properties of the UiO-66 metal–organic framework were investigated, with particular emphasis on the influence of structural defects. A series of UiO-66 samples were synthesized and characterized using a wide range of experimental techniques. Type I adsorption isotherms for low-temperature adsorption of N₂...

journal article 2022

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3D-Printed Metal–Organic Framework-Derived Composites for Enhanced Photocatalytic Hydrogen Generation

Hussain, M.Z. (author), Großmann, Paula F. (author), Kohler, Fabian (author), Kratky, Tim (author), Kronthaler, Laura (author), van der Linden, B. (author), Rodewald, Katia (author), Rieger, Bernhard (author), Fischer, Roland A. (author), Xia, Yongde (author)

Direct ink writing technique is used to 3D print Ti-metal–organic framework (MOF) NH₂-MIL-125 mixed with boehmite dispersal. Pt is also deposited onto 3D-printed monolith using atomic layer deposition (ALD) to offer additional catalytic sites. The Ti-MOF-derived powder sample and the pyrolyzed 3D-printed monolith samples are...

journal article 2022

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Structure-Property Relationship of Piezoelectric Properties in Zeolitic Imidazolate Frameworks: A Computational Study

Mula, S. (author), Donà, Lorenzo (author), Civalleri, Bartolomeo (author), van der Veen, M.A. (author)

Metal-organic frameworks (MOFs) are a class of nanoporous crystalline materials with very high structural tunability. They possess a very low dielectric permittivity ϵr due to their porosity and hence are favorable for piezoelectric energy harvesting. Even though they have huge potential as piezoelectric materials, a detailed analysis and...

journal article 2022

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Molecular-level understanding of highly selective heavy rare earth element uptake by organophosphorus modified MIL-101(Cr)

Keshavarz, Fatemeh (author), Kavun, V. (author), van der Veen, M.A. (author), Repo, Eveliina (author), Barbiellini, Bernardo (author)

Selective separation of rare earth elements (REEs) from solutions of mixed heavy and light metals by solid adsorbents is an important challenge in the fields of water treatment and metal recovery. The main challenge is water instability of many adsorbents, specifically metal–organic frameworks (MOFs), and their low selectivity. Grafting...

journal article 2022

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Emergent rotational dynamics and optical properties of metal–organic frameworks

Gonzalez Nelson, A.M. (author)

Metal–organic frameworks (MOFs) are ordered arrays of polytopic organic ligands, commonly called linkers, which interconnect metal-based inorganic building units via coordination bonds. The highly precise assembly of well defined building blocks into extended 3-D networks, known as reticular chemistry, has allowed researchers in this field to...

doctoral thesis 2021

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Surface functionalized N-C-TiO₂/C nanocomposites derived from metal-organic framework in water vapour for enhanced photocatalytic H₂ generation

Hussain, Mian Zahid (author), Yang, Zhuxian (author), van der Linden, B. (author), Huang, Zheng (author), Jia, Quanli (author), Cerrato, Erik (author), Fischer, Roland A. (author), Kapteijn, F. (author), Zhu, Yanqiu (author), Xia, Yongde (author)

Surface-functionalized nitrogen/carbon co-doped polymorphic TiO₂ phase junction nanoparticles uniformly distributed in porous carbon matrix were synthesized by a simple one-step pyrolysis of titanium based metal–organic framework (MOF), NH₂-MIL-125(Ti) at 700 °C under water vapour atmosphere. Introducing water vapour...

journal article 2021

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Overcoming Crystallinity Limitations of Aluminium Metal-Organic Frameworks by Oxalic Acid Modulated Synthesis

Canossa, S. (author), Gonzalez Nelson, A.M. (author), Shupletsov, Leonid (author), del Carmen Martin, Maria (author), van der Veen, M.A. (author)

A modulated synthesis approach based on the chelating properties of oxalic acid (H₂C₂O₄) is presented as a robust and versatile method to achieve highly crystalline Al-based metal-organic frameworks. A comparative study on this method and the already established modulation by hydrofluoric acid was conducted...

journal article 2020

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Selective recovery and separation of rare earth elements by organophosphorus modified MIL-101(Cr)

Kavun, V. (author), van der Veen, M.A. (author), Repo, Eveliina (author)

Development of state-of-the-art selective adsorbent materials for recovery of rare earth elements (REEs) is essential for their sustainable usage. In this study, a metal-organic framework (MOF), MIL-101(Cr), was synthesized and post-synthetically modified with optimised loading of the organophosphorus compounds tributyl phosphate (TBP), bis(2...

journal article 2020

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Molecular simulation of tunable materials: Metal-organic frameworks & ionic liquids theory & application

Becker, T. (author)

Undoubtedly, materials that can be tuned on a molecular level offer tremendous opportunities. However, to understand and customize such materials is challenging. In this context, molecular simulation can be helpful. The work presented in this thesis deals with two types of materials, Metal-Organic Frameworks and Ionic Liquids, and the study with...

doctoral thesis 2019

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Ultrafast Melting of Metal–Organic Frameworks for Advanced Nanophotonics

Kulachenkov, Nikita K. (author), Bruyere, Stéphanie (author), Sapchenko, Sergey A. (author), Mezenov, Yuri A. (author), Sun, D. (author), Krasilin, Andrei A. (author), Nominé, Alexandre (author), Pidko, E.A. (author), Milichko, Valentin A. (author)

The conversion of metal–organic frameworks (MOFs) into derivatives with a well-defined shape and composition is considered a reliable way to produce efficient catalysts and energy capacitors at the nanometer scale. Yet, approaches based on conventional melting of MOFs provide the derivatives such as amorphous carbon, metal oxides, or metallic...

journal article 2019

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Toward Optimal Metal–Organic Frameworks for Adsorption Chillers: Insights from the Scale-Up of MIL-101(Cr) and NH₂-MIL-125

Graf, Stefan (author), Redder, Florian (author), Bau, Uwe (author), de Lange, M.F. (author), Kapteijn, F. (author), Bardow, André (author)

The metal–organic frameworks (MOFs) MIL-101(Cr) and NH₂-MIL-125 offer high adsorption capacities and have therefore been suggested for sustainable energy conversion in adsorption chillers. Herein, these MOFs are benchmarked to commercial Siogel. The evaluation method combines small-scale experiments with dynamic modeling of full...

journal article 2019

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Engineering Metal–Organic Frameworks for the Electrochemical Reduction of CO₂: A Minireview

Wang, R. (author), Kapteijn, F. (author), Gascon, Jorge (author)

The electrochemical reduction of CO₂ holds great promise for lowering the concentration of CO₂ in the Earth′s atmosphere. However, several challenges have hindered the commercialization of this technology, including energy efficiency, the solubility of CO₂ in the aqueous phase, and electrode stability. In this...

review 2019

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Porous Metal-Organic Framework CUK-1 for Adsorption Heat Allocation toward Green Applications of Natural Refrigerant Water

Lee, Ji Sun (author), Yoon, Ji Woong (author), Mileo, Paulo G.M. (author), Cho, Kyung Ho (author), Park, Jaedeuk (author), Kim, Kiwoong (author), Kim, Hyungjun (author), de Lange, M.F. (author), Kapteijn, F. (author)

The development of new water adsorbents that are hydrothermally stable and can operate more efficiently than existing materials is essential for the advancement of water adsorption-driven chillers. Most of the existing benchmark materials and related systems in this field suffer from clear limitations that must be overcome to meet global...

journal article 2019

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High performance mixed matrix membranes (MMMs) composed of ZIF-94 filler and 6FDA-DAM polymer

Etxeberria Benavides, M. (author), David, Oana (author), Johnson, Timothy (author), Łozińska, Magdalena M. (author), Orsi, Angelica (author), Wright, Paul A. (author), Mastel, Stefan (author), Hillenbrand, Rainer (author), Kapteijn, F. (author), Gascon, Jorge (author)

Carbon capture and storage (CCS) using membranes for the separation of CO₂ holds great promise for the reduction of atmospheric CO₂ emissions from fuel combustion and industrial processes. Among the different process outlines, post-combustion CO₂ capture could be easily implemented in existing power plants....

journal article 2018

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Fluorescent metal organic frameworks for the visual enhancement of latent fingermarks

de Jong, R. (author), de Puit, M. (author)

Lanthanide-based (Eu and Tb) metal organic frameworks (MOFs) synthesized in this work are highly fluorescent crystalline structures that form through a self-assembly process in an aqueous environment. Various bio-organic molecules, including proteins and amino acids, can act as inducing agents for this process. The fact that these components...

journal article 2018

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In silico screening of metal-organic frameworks for adsorption-driven heat pumps and chillers

Erdös, M. (author), de Lange, M.F. (author), Kapteijn, F. (author), Moultos, O. (author), Vlugt, T.J.H. (author)

A computational screening of 2930 experimentally synthesized metal-organic frameworks (MOFs) is carried out to find the best-performing structures for adsorption-driven cooling (AC) applications with methanol and ethanol as working fluids. The screening methodology consists of four subsequent screening steps for each adsorbate. At the end of...

journal article 2018

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Towards High Performance Metal–Organic Framework–Microporous Polymer Mixed Matrix Membranes: Addressing Compatibility and Limiting Aging by Polymer Doping

Sabetghadam, A. (author), Liu, X. (author), Orsi, Angelica F. (author), Lozinska, Magdalena M. (author), Johnson, Timothy (author), Jansen, K.M.B. (author), Wright, Paul A. (author), Carta, Mariolino (author), McKeown, Neil B. (author), Kapteijn, F. (author), Gascon, Jorge (author)

Membrane separation for gas purification is an energy-efficient and environment-friendly technology. However, the development of high performance membranes is still a great challenge. In principle, mixed matrix membranes (MMMs) have the potential to overcome current materials limitations, but in practice there is no straightforward method to...

journal article 2018

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Influence of Filler Pore Structure and Polymer on the Performance of MOF-Based Mixed-Matrix Membranes for CO₂ Capture

Sabetghadam, Anahid (author), Liu, X. (author), Benzaqui, Marvin (author), Gkaniatsou, Effrosyni (author), Orsi, Angelica (author), Lozinska, Magdalena M. (author), Sicard, Clemence (author), Johnson, Timothy (author), Steunou, Nathalie (author), Wright, Paul A. (author), Serre, Christian (author), Gascon, Jorge (author), Kapteijn, F. (author)

To gain insight into the influence of metal-organic framework (MOF) fillers and polymers on membrane performance, eight different composites were studied by combining four MOFs and two polymers. MOF materials (NH₂-MIL-53(Al), MIL-69(Al), MIL-96(Al) and ZIF-94) with various chemical functionalities, topologies, and dimensionalities...

journal article 2018