| People | Locations | Statistics |
|---|---|---|
| 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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Simonsen, Søren Bredmose
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2024Operando Electron Microscopy and Impedance Analysis of Solid Oxide Electrolysis and Fuel Cellscitations
- 2023Chemical Insights into the Formation of Colloidal Iridium Nanoparticles from In Situ X-ray Total Scatteringcitations
- 2022Surfactant-free syntheses and pair distribution function analysis of osmium nanoparticlescitations
- 2021Development of high-temperature electrochemical TEM and its application on solid oxide electrolysis cells
- 2021Development of high-temperature electrochemical TEM and its application on solid oxide electrolysis cells
- 2021Co oxidation state at LSC-YSZ interface in model solid oxide electrochemical cellcitations
- 2020Solvent-dependent growth and stabilization mechanisms of surfactant-free colloidal Pt nanoparticlescitations
- 2019Electrospun nanofiber materials for energy and environmental applications citations
- 2019Silver Modified Cathodes for Solid Oxide Fuel Cellscitations
- 2019Silver Modified Cathodes for Solid Oxide Fuel Cellscitations
- 2019Electrospun nanofiber materials for energy and environmental applicationscitations
- 2019Structural Characterization of Membrane-Electrode-Assemblies in High Temperature Polymer Electrolyte Membrane Fuel Cellscitations
- 2019Hydrothermal Synthesis, Characterization, and Sintering Behavior of Core-Shell Particles: A Principle Study on Lanthanum Strontium Cobaltite Coated with Nanosized Gadolinium Doped Ceriacitations
- 2019Hydrothermal Synthesis, Characterization, and Sintering Behavior of Core-Shell Particles: A Principle Study on Lanthanum Strontium Cobaltite Coated with Nanosized Gadolinium Doped Ceriacitations
- 2018Solutions for catalysis: A surfactant-free synthesis of precious metal nanoparticle colloids in mono-alcohols for catalysts with enhanced performances
- 2016Electron microscopy investigations of changes in morphology and conductivity of LiFePO4/C electrodescitations
- 2016Effects of strong cathodic polarization of the Ni-YSZ interfacecitations
- 2016Comparison of ultramicrotomy and focused-ion-beam for the preparation of TEM and STEM cross section of organic solar cellscitations
- 2016In-Situ Transmission Electron Microscopy on Operating Electrochemical Cells
- 2016Scandium-doped zinc cadmium oxide as a new stable n-type oxide thermoelectric materialcitations
- 2016Nanocomposite YSZ-NiO Particles with Tailored Structure Synthesized in a Two-Stage Continuous Hydrothermal Flow Reactor
- 2016Synthesis of ligand-free CZTS nanoparticles via a facile hot injection routecitations
- 2015Environmental TEM study of the dynamic nanoscaled morphology of NiO/YSZ during reductioncitations
- 2014NiO/YSZ Reduction for SOFC/SOEC Studied In Situ by Environmental Transmission Electron Microscopycitations
- 2011Sintering of oxide-supported Pt and Pd nanoparticles in air studied by in situ TEM
- 2011Atomic-scale non-contact AFM studies of alumina supported nanoparticles
Places of action
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article
Solvent-dependent growth and stabilization mechanisms of surfactant-free colloidal Pt nanoparticles
Abstract
<p>Understanding the formation of nanoparticles (NPs) is key to develop materials via sustainable routes. The Co4Cat TM process is a new synthesis of precious metal NPs in alkaline mono-alcohols well-suited to develop active nanocatalysts. The synthesis is 'facile', surfactant-free and performed under mild conditions like low temperature. Interestingly, this process is sensitive to parameters masked in other colloidal syntheses. The oxidation properties of the solvent are here shown to strongly influence the formation of Pt NPs. Based on the in situ formation of CO adsorbed on the NP surface by solvent oxidation, a model is proposed that accounts for the different growth and stabilization mechanisms as well as re-dispersion properties of the surfactant-free NPs in different solvents. Using in situ and ex situ characterizations, it is established that in methanol, a slow nucleation with a limited NP growth is achieved. In ethanol, a fast nucleation followed by continuous and pronounced particle sintering occurs. The results support further strategies to rationally design, investigate, control and produce improved NPs for fundamental and applied research.</p>