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Rob Ameloot

Rob Ameloot
KU Leuven | ku leuven · Centre for Surface Chemistry and Catalysis (COK)

PhD, Materials Engineering

About

149
Publications
58,621
Reads
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8,241
Citations
Introduction
I lead a materials chemistry group that thrives on crossing traditional subject boundaries. As part of the KU Leuven ​Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions and the Department of Microbial and Molecular Systems, we study different flavors of porous matter. Our research is focused on enabling applications based on these materials through a fundamental understanding of their formation processes and properties. In doing so, we aim to build bridges between the established use of porous materials, as adsorbents and catalysts, and the worlds of microelectronics, diagnostics, and additive manufacturing. Follow us on Twitter @AmelootGroup
Additional affiliations
October 2014 - March 2020
KU Leuven
Position
  • Professor (Associate)
January 2012 - June 2013
University of California, Berkeley
Position
  • PostDoc Position
Description
  • Research group of Prof. J. R. Long
June 2011 - September 2014
KU Leuven
Position
  • PostDoc Position
Description
  • Research group of Prof. D. E. De Vos
Education
September 2002 - June 2007
KU Leuven
Field of study

Publications

Publications (149)
Article
A photobase generator was used to induce metal–organic framework (MOF) nucleation upon UV irradiation. This method was further developed into a simple, one-step method for depositing patterned MOF films. Furthermore, the ability of our method to coat a single substrate with MOF films having different chemical compositions is illustrated. The method...
Article
Single‐Crystal Capacitive Sensors In article number 2204065, Min Tu, Rob Ameloot, and co‐workers develop a space‐confined synthesis method to fabricate surface‐embossed micropatterns and surface‐embedded gold electrodes on metal–organic framework single crystals. A capacitive gas sensor is constructed by embedding Au electrodes on HKUST‐1 flat sing...
Article
Concentration gradients feature widely in many biomedical processes (e.g., cell evolution, chemotaxis, personalized healthcare, and drug screening). The concentration gradient generators (CGG) developed previously have used either static gradients or gradients maintained by a continuous co‐flow. This paper describes a platform for the manufacture o...
Preprint
Full-text available
Films of close-packed Au nanoparticles are coupled electrodynamically through their collective plasmon resonances. This collective optical response results in enhanced light-matter interactions, which can be exploited in various applications. Here, we demonstrate their application in sensing volatile organic compounds, using methanol as a test-case...
Article
Full-text available
Films of close-packed gold or Au nanoparticles are coupled electrodynamically through their collective plasmon resonances. This collective optical response results in enhanced light–matter interactions, which can be exploited in various applications. Here, we demonstrate their application in sensing volatile organic compounds, using methanol as a t...
Article
Full-text available
Porosity and surface area analysis play a prominent role in modern materials science. At the heart of this sits the Brunauer–Emmett–Teller (BET) theory, which has been a remarkably successful contribution to the field of materials science. The BET method was developed in the 1930s for open surfaces but is now the most widely used metric for the est...
Article
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Nanoporous Materials In article number 2201502, David Fairen‐Jimenez and co‐workers conduct a round‐robin exercise by providing 18 already‐measured adsorption isotherms to sixty‐one labs and show that the reproducibility of the Brunauer–Emmett–Teller (BET) area determination in micro‐ and mesoporous materials remains a largely ignored issue. To sol...
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Full-text available
High signal‐to‐noise ratio (SNR) is crucial to obtaining high‐quality magnetic resonance (MR) images. However, a poor fit of fixed‐size radiofrequency (RF) coils to the subject often limits the SNR both in research and clinical magnetic resonance imaging (MRI) practice. Therefore, there is an urgent need to fabricate RF coils that exhibit a close g...
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The polyhedral shape and fragile nature of single crystals of metal–organic frameworks (MOFs) hinder their processing using standard microfabrication techniques. As a result, the fabrication of surface patterns and microelectrodes on MOF single crystals is challenging, which limits both the direct electrical interrogation of crystals in research an...
Article
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Fabricating microfluidics directly onto a printed circuit board (PCB) is a promising method to produce integrated systems. Here, we applied stereolithography (SLA) to 3D print microfluidic components directly onto PCBs. Current SLA resins suffer from significant thermal expansion, which leads to adhesion issues during temperature cycling. Photocura...
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3D-printed porous microfluidics has been proposed to realize complex passive lab-on-chips. The performance of these devices depends on capillary flow design and control. To this end, a predictive multiscale model of capillary imbibition in porous channels obtained through powder-based 3D printing was developed. Pore-network modelling was used to ob...
Preprint
Porosity and surface area analysis play a prominent role in modern materials science, where their determination spans the fields of natural sciences, engineering, geology and medical research. At the heart of this sits the Brunauer-Emmett-Teller (BET) theory,[1] which has been a remarkably successful contribution to the field of materials science....
Article
Full-text available
ZIF-8 was synthesized by subjecting ZnO thin films deposited via plasma-enhanced atomic layer deposition to a 2-methylimidazole vapor. The impact of the conversion time as well as the density and thickness of the ZnO precursor on the resulting ZIF-8 layers were investigated. Grazing Incidence X-ray diffraction reveals a preferred (100) or (111) ori...
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This roadmap aims to define the guidelines to maximise the impact of the 3D printing revolution on the next generation of devices for the energy transition. It also outlines the current status, challenges and required advances in Science and Technology for a series of power generation technologies (fuel cells, solar cells, thermoelectric generators...
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The demand for more ecological, highly engineered hydrogel beads is driven by a multitude of applications such as enzyme immobilization, tissue engineering and superabsorbent materials. Despite great interest in hydrogel fabrication and utilization, the interaction of hydrogels with water is not fully understood. In this work, NMR relaxometry exper...
Article
Photolithographie In der Zuschrift auf S. 25872 berichten Rob Ameloot et al. über die Herstellung von Ionogelfilmen und -mustern durch chemische Dampfabscheidung von ionischen Flüssigkeiten.
Article
Photolithography In their Communication on page 25668, Rob Ameloot et al. report the fabrication of ionogel films and patterns by chemical vapor deposition of ionic liquids.
Article
Full-text available
The limited control over the printing process in commercial powder bed 3D printers hinders the exploration of novel materials and applications. In this study, a custom binder-jetting 3D printer was developed. The resulting fine-grained control over the printing process enables features such as voxel-based control over the printed ink volume, adapti...
Article
We use dodecanoic acid as a modulator to yield titanium MOF nanoparticles with good control of size and colloid stability and minimum impact to the properties of the framework to...
Article
Film deposition and high‐resolution patterning of ionic liquids (ILs) remain a challenge, despite a broad range of applications that would benefit from this type of processing. Here, we demonstrate for the first time the chemical vapor deposition (CVD) of ILs. The IL‐CVD method is based on the formation of a non‐volatile IL through the reaction of...
Article
Film deposition and high-resolution patterning of ionic liquids (ILs) remain a challenge, despite a broad range of applications that would benefit from this type of processing. Here, we demonstrate for the first time the chemical vapor deposition (CVD) of ILs. The IL-CVD method is based on the formation of a non-volatile IL through the reaction of...
Article
Full-text available
Metal halide perovskites draw increasing attention as photodetector materials due to their strong visible light absorption and resulting photocurrent. The development of efficient fabrication routes to realize high-resolution perovskite pixel arrays is critical to enable practical devices. Herein, we report a dry lift-off process to fabricate methy...
Article
Full-text available
In this research, a novel governing mechanism has been proposed for the formation of conversion coating on the thermal oxide film of Advanced High Strength Stainless Steels (AHSSS). These new lightweight and engineered materials are being designed to impart emission reduction and solid performance. This coating has been characterized using advanced...
Preprint
We use dodecanoic acid as a modulator to yield titanium MOF nanoparticles with good control of size and colloid stability and minimum impact to the properties of the framework to enable direct fabrication of crystalline, porous thin films
Preprint
We use dodecanoic acid as a modulator to yield titanium MOF nanoparticles with good control of size and colloid stability and minimum impact to the properties of the framework to enable direct fabrication of crystalline, porous thin films
Article
Full-text available
The confinement of luminescent guest molecules in porous host materials can induce photophysical properties different from either component in isolation. In this work, we studied several host‐guest systems consisting of anthracene and its substituted analogs adsorbed in a series of metal‐organic frameworks (MOFs) and inorganic molecular sieves. Flu...
Article
Full-text available
Rapid diagnostic testing at the site of the patient is essential when a fully equipped laboratory is not accessible. To maximize the impact of this approach, low‐cost, disposable tests that require minimal user‐interference and external equipment are desired. Fluid transport by capillary wicking removes the need for bulky ancillary equipment to act...
Article
Full-text available
Rapid diagnostic testing at the site of the patient is essential when a fully equipped laboratory is not accessible. In article number 2008712, Rob Ameloot and co-workers present a novel powder-based 3D-printing method that enables monolithic capillarity-driven microfluidic devices. Precise spatial control over the internal surface chemistry of por...
Article
Physisorption using gas or vapor probe molecules is the most common characterization technique for porous materials. The method provides textural information on the adsorbent as well as the affi nity for a specific adsorbate, typically through equilibrium pressure measurements. Here, we demonstrate how low-field NMR can be used to measure full adsorpti...
Preprint
Porosity and surface area analysis play a prominent role in modern materials science, where 123 their determination spans the fields of natural sciences, engineering, geology and medical 124 research. At the heart of this sits the Brunauer-Emmett-Teller (BET) theory,[1] which has been 125 a remarkably successful contribution to the field of materia...
Article
Vapor-phase fabrication of the metal–organic framework ZIF-8 through the conversion of precursors prepared by physical, atomic, and molecular layer deposition.
Article
Full-text available
The amalgamation of different disciplines is at the heart of reticular chemistry and has broadened the boundaries of chemistry by opening up an infinite space of chemical composition, structure, and material properties. Reticular design has enabled the precise prediction of crystalline framework structures, tunability of chemical composition, incor...
Article
Full-text available
The amalgamation of different disciplines is at the heart of reticular chemistry and has broadened the boundaries of chemistry by opening up an infinite space of chemical composition, structure, and material properties. Reticular design has enabled the precise prediction of crystalline framework structures, tunability of chemical composition, incor...
Article
Full-text available
Thin films of crystalline and porous metal–organic frameworks (MOFs) have great potential in membranes, sensors, and microelectronic chips. While the morphology and crystallinity of MOF films can be evaluated using widely available techniques, characterizing their pore size, pore volume, and specific surface area is challenging due to the low amoun...
Article
Full-text available
Thin films of crystalline porous materials have great potential in membranes, sensors, and microelectronics. Still, characterizing their pore size, pore volume, and specific surface area is challenging. In article number 2006993, Rob Ameloot and co‐workers discuss positron annihilation lifetime spectroscopy, represented by the bees lighting up insi...
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Full-text available
Metal–organic frameworks (MOFs) offer disruptive potential in micro- and optoelectronics because of the unique properties of these microporous materials. Nanoscale patterning is a fundamental step in the implementation of MOFs in miniaturized solid-state devices. Conventional MOF patterning methods suffer from low resolution and poorly defined patt...
Article
A template‐mediated MOF‐CVD (metal—organic framework‐chemical vapor deposition) method was developed for the syntheses of MOFs in both powder and thin‐film forms. The time‐resolved in situ synchrotron small‐angle X‐ray scattering reveals that introducing template vapor into the MOF‐CVD process precludes transformation into a dense phase, thus resul...
Article
Full-text available
The landscape of possible polymorphs for some metal‐organic frameworks (MOFs) can pose a challenge for controlling the synthesis outcome. In this work, we demonstrate how a template can enable such control in the vapor‐assisted formation of zeolitic imidazolate framework (ZIF) powders and thin films. Introducing a small amount of ethanol or dimethy...
Article
Full-text available
The structuring of the metal‐organic framework material ZIF‐8 as films and membranes through the vapor‐phase conversion of ZnO fractal nanoparticle networks is reported. The extrinsic porosity of the resulting materials can be tuned from 4% to 66%, and the film thickness can be controlled from 80 nm to 0.23 mm, for areas >100 cm2. Freestanding and...
Article
Because of their molecular sieving properties, metal-organic frameworks have a high potential for application in gas storage, separation, and sensing. However, their real-world implementation will require robust and low-cost synthetic approaches. We herein report the solvent-free synthesis of ultramicroporous α-magnesium formate (α-MgFm) based on t...
Article
Chemical vapor deposition of MOFs (MOF-CVD) has been used to coat solid-phase microextraction (SPME) fibers with ZIF-8, by exposing ZnO layers to the linker vapor (2-methylimidazole). This ZIF-8 coating has been used as a seed layer in a following solvothermal MOF growth step in order to increase the ZIF-8 thickness. The combined MOF-CVD and solvot...
Article
Correction for ‘4D synchrotron microtomography and pore-network modelling for direct in situ capillary flow visualization in 3D printed microfluidic channels’ by Agnese Piovesan et al. , Lab Chip , 2020, 20 , 2403–2411, DOI: 10.1039/D0LC00227E.
Article
Powder-based 3D printing was employed to produce porous, capillarity-based devices suitable for passive microfluidics. Capillary imbibition in such devices was visualized in-situ through dynamic synchrotron X-ray microtomography performed at the European Synchrotron Radiation Facility (ESRF) with sub-second time resolution. The obtained reconstruct...
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Full-text available
Energy‐efficient indoors temperature and humidity control can be realised using the reversible adsorption and desorption of water in porous materials. Stable microporous aluminium‐based metal‐organic frameworks (MOFs) present promising water sorption properties for this goal. The development of synthesis routes that make use of available and afford...
Data
The cleanroom-compatible process for the chemical vapor deposition of large-area metal-organic frameworks and their characterization using tools common in the microfabrication setting.
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Full-text available
A simple solvent- and catalyst-free method is presented for the synthesis of the large-pore metal-organic framework (MOF) MAF-6 (RHO-Zn(eIm)2) based on the reaction of ZnO with 2-ethylimidazole vapor at temperatures ≤ 100 °C. By translating this method to a chemical vapor deposition (CVD) protocol, crystalline films of a large-pore material could b...
Article
High fluxes and low fouling are practically highly desired in all membrane processes. One generic way to realize this is by introducing surface patterns on the membrane to increase the active area and the surface roughness. A new method to prepare flat-sheet patterned membranes using a patterned knife combined with a modified phase inversion proces...
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Full-text available
MAF‐252, a non‐porous crystalline coordination polymer, is obtained from the solvent‐free reaction of ZnO with 3‐(2‐pyridyl)‐5‐(4‐pyridyl)‐1,2,4‐triazole. MAF‐252 can be synthesized in powder form and deposited as thin films, starting from ZnO powder and layers, respectively. Chemical vapour deposition (CVD) of MAF‐252 enables conformal and pattern...