A5062907811- Metal-Organic Frameworks: Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Advanced battery technologies research
- Catalytic Processes in Materials Science
- Covalent Organic Framework Applications
- Catalysis and Oxidation Reactions
- Mesoporous Materials and Catalysis
- Carbon Dioxide Capture Technologies
- Electrochemical Analysis and Applications
- Gas Sensing Nanomaterials and Sensors
- Hydrocarbon exploration and reservoir analysis
- Enhanced Oil Recovery Techniques
- Fuel Cells and Related Materials
- Analytical Chemistry and Sensors
- Coal Properties and Utilization
- Membrane Separation and Gas Transport
- Phase Equilibria and Thermodynamics
- Mechanical and Optical Resonators
- Acoustic Wave Resonator Technologies
- Supercapacitor Materials and Fabrication
- Catalysis and Hydrodesulfurization Studies
- Anodic Oxide Films and Nanostructures
- Nanopore and Nanochannel Transport Studies
- Hydraulic Fracturing and Reservoir Analysis
- Electrophoretic Deposition in Materials Science
KU Leuven
2023-2025
Massachusetts Institute of Technology
2018-2025
IMEC
2024
Centre National de la Recherche Scientifique
2013-2021
Aix-Marseille Université
2016-2021
IIT@MIT
2020
Université Claude Bernard Lyon 1
2013
Institut de Recherches sur la Catalyse et l'Environnement de Lyon
2013
The large-scale implementation of renewable energy systems necessitates the development storage solutions to effectively manage imbalances between supply and demand. Herein, we investigate such a scalable material solution for in supercapacitors constructed from readily available precursors that can be locally sourced virtually anywhere on planet, namely cement, water, carbon black. We characterize our carbon-cement electrodes by combining correlative EDS–Raman spectroscopy with capacitance...
Abstract Metal-organic frameworks are widely considered for the separation of chemical mixtures due to their adjustable physical and properties. However, while much effort is currently devoted developing new adsorbents a given separation, an ideal scenario would involve single adsorbent multiple separations. Porous materials exhibiting framework flexibility offer unique opportunities tune these properties since pore size shape can be controlled by application external stimuli. Here, we...
Abstract A simple laboratory‐scale protocol that enables the evaluation of effect adsorbed water on CO 2 uptake is proposed. 45 metal–organic frameworks (MOFs) were compared against reference zeolites and active carbons. It possible to classify materials with different trends in varying amounts pre‐adsorbed water, including cases which an increase observed for samples a given amount water. Comparing loss between “wet” “dry” Henry constant calculated from adsorption isotherm results...
Water adsorbed in MIL-96(Al) proffers a significant increase affinity for CO<sub>2</sub> with only limited decrease uptake.
A series of four micro‐ or mesoporous metal‐organic frameworks [UiO‐66(Zr), UiO‐66(Zr)_NH 2 , MIL‐100(Fe), MIL‐127(Fe)] were synthesized in powder form and pelletized the spheres by using a polyvinyl‐based binder. The effect pelletization on adsorption gasses (N CO, CO CH 4 C H 6 3 8 10 ) at 303 K was evidenced isotherms enthalpies measured microcalorimetric analysis. As expected, uptakes gas per gram material lower for than powder. However, taking into account bulk density, this tendency...
Abstract Diatoms produce intricately patterned silica structures under ambient conditions, a process initiated by post‐translationally modified silaffin peptides that nucleate silicic acid. Designing these would enable the production of nanostructures with desired properties; however, functional effects modifications are poorly understood. Here, Escherichia coli is used to express and modify recombinant R5 peptide from diatom Cylindrotheca fusiformis . A library 38 enzymes tested for in...
The successful development of a metal–organic framework (MOF)-derived Co/Co3O4/C core–shell composite integrated into laser-induced graphitic (LIG) carbon electrodes for electrochemical sensing is reported. sensors are fabricated via direct laser scribing technique using UV (355 nm wavelength) to induce the photothermolysis rationally selected ZIF-67 LIG matrix. Electrochemical characterization reveals that incorporation laser-scribed ZIF-67-derived on electrode surface reduces impedance...
Supercapacitors are great candidates for energy boosting, power, and memory backup. However, they suffer from low‐energy density, relatively high cost, carbon footprint problems due to their electrode materials, such as commonly used activated carbons (ACs). To prepare better renewable ACs, 11 biomass materials pretreated with hydrothermal processing then at temperature potassium hydroxide (KOH) in the present study. The prepared ACs characterized scanning electron microscopy images, atomic...
This paper explored the practical utility of gas sensing applications based on multi-degree-of-freedom (Multi-DoF) bulk acoustic wave (BAW) resonant sensors, including 1, 2, and 3-DoF devices, where piezoelectric actuation methods were adopted. Zeolitic imidazolate framework-8 (ZIF-8) was chosen for adsorption desorption ethanol vapor, thereby facilitating mechanism introducing external mass changes to multi-DoF resonating system. Similar conventional quartz crystal microbalance (QCM)...
Thermal oxidation of carbon electrodes is a common approach to improving flow battery performance. Here, we investigate how thermal pretreatment increases electrode surface area and the effect this added has on Specifically, rigorously analyze Freudenberg H23 paper electrodes, binder-free model material, by systematically varying temperature (400, 450, 500 °C) time (0–24 h) evaluating changes in physical, chemical, electrochemical properties electrodes. We compare physical area, measured...
The emergence of multifunctional cement-based materials in the construction industry has potential to shift paradigm from strength-only performance new functionalities enabled by electron conducting capabilities one most material- and energy-intensive sectors worldwide. To enable such developments, we present results a hybrid experimental-theoretical investigation electrical conductivity resistive (Joule) heating highly heterogeneous nanocarbon (nCB)--cement-based composites (pastes...
Alkylation of aromatic hydrocarbons is among the most industrially important reactions, employing acid catalysts such as AlCl3, H2SO4, HF, or H3PO4. However, these present severe drawbacks, low selectivity and high corrosiveness. Taking advantage intrinsic strength Lewis Brønsted acidity niobium oxide, we have designed first series Nb2O5-SiO2(HIPE) monolithic bearing multiscale porosity through integration a sol-gel process physical chemistry complex fluids. The MUB-105 offers efficient...
A significant part of the hydrocarbons contained in source rocks remains confined within organic matter—called kerogen—from where they are generated. Understanding sorption and transport properties kerogens is, therefore, paramount to predict production. Specifically, knowing impact thermal maturation on evolution porous network is key. Here, we propose an experimental procedure study interplay between chemical structural at nanometer scale. First, networks rock samples, covering a range...
Methane diffusion in micro- and mesopores of carbonaceous materials is dominated by molecular interactions with the pore walls. As a consequence, fluid molecules are mainly diffusive regime laws mechanics not directly applicable. A method called "free volume theory" has been successfully used different authors to study n-alkanes into microporous carbons. However, we show this paper that such fails describe dynamical properties methane porous hosts presenting both mesopores. We further...
Via integrative chemistry, the first CoOx–SiO2(HIPE) self-standing monoliths of cobalt nano-oxides embedded within silica macro–mesocellular hosts have been prepared. These binary CoOx–SiO2 porous nanostructure (MUB-100(x)) materials present an average 95% porosity. We found out that high concentration maintains hexagonal-2D organization mesoscopic voids when applying thermal treatment at 700 °C. Their specific surface areas fall between 400 and 500 m2 g–1 assessed by Ar physisorption...
In this work, we investigate the vapor-assisted synthesis of metal-organic framework MOF-74 starting from three metal oxides (ZnO, CoO, and MgO). Depending on nature added vapor (H2O, DMF, DMSO), oxide, temperature, outcome reaction can be directed towards desired porous phase. Ex situ in XRD measurements reveal formation an intermediate phase during MgO with H4dobdc, while forms directly for ZnO CoO. The reduced CO2 uptake resulting materials compared to solvothermally prepared MOFs might...