| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Baert, Kitty
Vrije Universiteit Brussel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Early stages of liquid-metal corrosion on pre-oxidized surfaces of austenitic stainless steel 316L exposed to static Pb-Bi eutectic at 400 °C
- 2023DBD plasma-assisted coating of metal alkoxides on sulfur powder for Li–S batteriescitations
- 2023Identification of carbon‐containing phases in electrodeposited hard Fe–C coatings with intentionally codeposited carbon
- 2023Identification of carbon-containing phases in electrodeposited hard Fe–C coatings with intentionally codeposited carbon
- 2022Use of nanoscale carbon layers on Ag-based gas diffusion electrodes to promote CO productioncitations
- 2022Unravelling the chemisorption mechanism of epoxy-amine coatings on Zr-based converted galvanized steel by combined static XPS/ToF-SIMS approachcitations
- 2022Anti-infective DNase I coatings on polydopamine functionalized titanium surfaces by alternating current electrophoretic depositioncitations
- 2022Albumin Protein Adsorption on CoCrMo Implant Alloycitations
- 2022Influence of thermal oxide layers on the hydrogen transport through the surface of SAE 1010 steelcitations
- 2022Influence of Thermal Oxide Layers on the Hydrogen Transport through the Surface of SAE 1010 Steelcitations
- 2022Revisiting the surface characterization of plasma-modified polymerscitations
- 2021Role of phosphate, calcium species and hydrogen peroxide on albumin protein adsorption on surface oxide of Ti6Al4V alloycitations
- 2021The mechanism of thermal oxide film formation on low Cr martensitic stainless steel and its behavior in fluoride-based pickling solution in conversion treatmentcitations
- 2021Photodeposited IrO2 on TiO2 support as a catalyst for oxygen evolution reactioncitations
- 2021A combined XPS/ToF-SIMS approach for the 3D compositional characterization of Zr-based conversion of galvanized steelcitations
- 2019Molybdate-phosphate conversion coatings to protect steel in a simulated concrete pore solutioncitations
- 2018Selective reduction of nitrobenzene to aniline over electrocatalysts based on nitrogen-doped carbons containing non-noble metalscitations
- 2018Selective reduction of nitrobenzene to aniline over electrocatalysts based on nitrogen-doped carbons containing non-noble metalscitations
- 2018Carbon-supported iron complexes as electrocatalysts for the cogeneration of hydroxylamine and electricity in a NO-H2 fuel cellcitations
- 2018Carbon-supported iron complexes as electrocatalysts for the cogeneration of hydroxylamine and electricity in a NO-H-2 fuel cell:A combined electrochemical and density functional theory studycitations
- 2017Development of an Electrochemical Procedure for Monitoring Hydrogen Sorption/Desorption in Steelcitations
- 2015XPS and mu-Raman study of nanosecond-laser processing of poly(dimethylsiloxane) (PDMS)citations
- 2015fs- and ns-laser processing of polydimethylsiloxane (PDMS) elastomer: Comparative studycitations
Places of action
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article
Photodeposited IrO2 on TiO2 support as a catalyst for oxygen evolution reaction
Abstract
<p>A simple, alternative, catalyst preparation method was proposed in order to combine the properties of photoactive and stable TiO<sub>2</sub> with state-of-the art of IrO<sub>2</sub> for the oxygen evolution reaction (OER). IrO<sub>2</sub> nanoparticles were obtained in the process of photodeposition on the surface of TiO<sub>2</sub> powder by UV illumination from appropriate Ir salt aqueous solution. Physicochemical characterization of the resulting IrO<sub>2</sub>/TiO<sub>2</sub> composite, containing 25% w/w Ir, was carried out by transmission electron microscopy (TEM), energy-dispersive spectrometry (EDS), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The electrochemical behaviour of the prepared IrO<sub>2</sub>/TiO<sub>2</sub> catalyst was compared with that of commercial unsupported IrO<sub>2</sub>. Cyclic voltammetry (CV), linear sweep voltammetry (LSV) and chronoamperometry (CA) were performed to identify the surface electrochemistry and OER of the IrO<sub>2</sub>/TiO<sub>2</sub> catalyst. Electrochemical impedance spectroscopy (EIS) was used to determine uncompensated and charge transfer resistance. CA experiments were carried out in order to evaluate the stability of the IrO<sub>2</sub>/TiO<sub>2</sub> composite during OER in the dark and under UV light irradiation. The photodeposition method on a TiO<sub>2</sub> support resulted in 1–2 nm Ir nanoparticles, very well dispersed on the surface and in their oxidized state (IrO<sub>2</sub>). Electrochemical results indicated that despite its lower conductivity, the IrO<sub>2</sub>/TiO<sub>2</sub> composite exhibits comparable intrinsic electrocatalytic activity for OER with that of the commercial IrO<sub>2</sub> catalyst. It was found that under UV light irradiation there has been improvement of the stability of the IrO<sub>2</sub>/TiO<sub>2</sub> performance during oxygen evolution (presumably due to sustained activation of reactive species via photogenerated holes or OH radicals) as well as current enhancement (due to the interaction between the photogenerated holes in TiO<sub>2</sub> support and IrO<sub>2</sub> nanoparticles). These would be beneficial effects in prolonged water photo-electrolysis.</p>