A5009265197- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Catalysis and Oxidation Reactions
- Catalysis and Hydrodesulfurization Studies
- Catalysis for Biomass Conversion
- Machine Learning in Materials Science
- Carbon dioxide utilization in catalysis
- Zeolite Catalysis and Synthesis
- Chemical Synthesis and Characterization
- Advanced Chemical Physics Studies
- Carbohydrate Chemistry and Synthesis
- Diet, Metabolism, and Disease
- Enzyme Production and Characterization
- Biofuel production and bioconversion
- Enzyme Catalysis and Immobilization
- CO2 Reduction Techniques and Catalysts
- Hybrid Renewable Energy Systems
- Asymmetric Hydrogenation and Catalysis
- Polymer crystallization and properties
- Cervical Cancer and HPV Research
- Electrocatalysts for Energy Conversion
- Advanced Electron Microscopy Techniques and Applications
- Magnetic properties of thin films
- Chemical Looping and Thermochemical Processes
- Process Optimization and Integration
Ghent University
2022-2025
Ghent University Hospital
2023
Institute of Chemical and Engineering Sciences
2017-2019
Agency for Science, Technology and Research
2017-2019
National University of Singapore
2017-2019
A*STAR Graduate Academy
2017
Isfahan University of Technology
2011-2014
MgAl2O4-supported Ni materials are highly active and cost-effective CO2 conversion catalysts, yet their oxidation by remains dubious. Herein, NiO/MgAl2O4, prepared via colloidal synthesis (10 wt % Ni) to limit size distribution, or wet impregnation (5, 10, 20, 40 Ni), bare, i.e., unsupported, NiO examined in H2 reduction oxidation, using thermal conductivity detector-based measurements situ quick X-ray absorption spectroscopy, analyzed multivariate curve resolution-alternating least-squares....
Modulation excitation (ME) with phase-sensitive detection (PSD) is an emerging strategy to selectively characterize catalytic species that actively participate in a chemical reaction. The commonly applied square-wave (SW) modulations, however, contain limited frequency content, impeding rigorous kinetic analysis of short-lived reaction intermediates through PSD by considering higher-order harmonics. To overcome this bottleneck, "modulation engineering" approach designed, whereby stimulation...
Fe and Ni K edge CO2/H2 modulation excitation X-ray absorption spectroscopy (MEXAS) was performed to gain insights into the redox behavior of species within activated, i.e., reduced, Ni/MgFeAlO4. These results are compared with those "monometallic" Ni/MgAl2O4 MgFeAlO4. Concurrent phase-sensitive detection (PSD) analysis kinetic differentiation demodulated MEXAS data, obtained after exposure activated catalyst CO2, evidence oxidation before Ni. oxidizes FeOx, which interacts Mg from support...
The high gas–solid slip velocity and the resulting intensified heat mass transfer make vortex reactors (GSVR) a promising reactor technology for oxidative coupling of methane (OCM). short gas residence time solid in GSVR require highly active catalyst with strong attrition resistance. Conventional Sr/La2O3 catalysts possess sufficient activity; however, these materials lack mechanical strength. In this study, novel mechanically is developed by supporting conventional OCM on porous SiC...
Moderate and strong base sites play a key role in glucose hydrogenolysis over bifunctional Cu–La<sub>2</sub>O<sub>2</sub>CO<sub>3</sub>/Al<sub>2</sub>O<sub>3</sub> catalysts.
the goal of this paper is to use solar power charge Lithium-ion (Li-ion) batteries, pulse width modulator (PWM) control method implemented design and build a battery charger prototype.Maximum point tracking (MPPT) used in photovoltaic (PV) system maximise PV output power, irrespective temperature irradiation conditions.MPPT system, consisting buck-type dc-dc converter, which controlled by microcontroller unit, implemented.It presented model for lithiumion (Li-Ion) that suitable computer...
Abstract This work reports the individual role of strong Lewis base sites on catalytic conversion glucose hydrogenolysis to acetol/lactic acid, including isomerisation fructose and pyruvaldehyde rearrangement/hydrogenation acid. La 2 O 3 , Nd Sm Pr 6 11 were selected as representative oxides consisting different sites. The basicity these lanthanide was characterised by CO ‐TPD DRIFT spectroscopy. It found that cation‐oxygen pairs, Brønsted OH group coordinated with one Lanthanide cation,...
Abstract Given its role as a primary side product and potential soft oxidant in the oxidative coupling of methane (OCM), understanding effect CO 2 co‐feeding on OCM emerges key milestone to optimize process. To grasp molecular impact , mechanistic investigation over La‐Sr/CaO catalyst was carried out via microkinetic modeling. Seven descriptors with precise physico‐chemical meaning were regressed for both pure O order assess eventual structural changes induced by presence feed. Global...
Abstract The combined use of O 2 and CO as oxidizing agents in the oxidative coupling methane (OCM) has been assessed over two representative OCM catalysts, i. e., La−Sr/CaO NaMnW/SiO , under a wide range inlet concentrations. overall impact was found to depend on operating conditions catalyst used. At ‐rich conditions, negative effect observed C selectivity. ‐lean positive both catalysts observed, likely originating from an enhanced dehydrogenation H 6 4 limited deep oxidation involving...
Designing an active, selective, and stable catalyst for catalytic polyolefin pyrolysis is crucial enhancing energy efficiency economic viability in chemical processes. In this study, two synthesis methods—NaOH NaOH/CTAB treatments—were employed to modify the physicochemical properties of CBV23, CBV55, CBV80 zeolites. The performance both parent modified zeolites was evaluated polypropylene using a two-stage micro-pyrolyzer coupled with two-dimensional GC-FID/MS. treatment preserved enhanced...
Single-reactor CO2 conversion to light olefins via methanol is currently obstructed by the incompatible reaction conditions for and olefin steps. The conventional Cu/ZnO-Al2O3 CO2...