| 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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Desario, Paul
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (25/25 displayed)
- 2021STABILIZATION OF REACTIVE OXYGEN SPECIES IN CERIA-BASED COMPOSITE AEROGELS
- 2021Synthesis and applications of WO3 nanosheets: the importance of phase, stoichiometry, and aspect ratiocitations
- 2021Designing Oxide Aerogels with Enhanced Sorptive and Degradative Activity for Acute Chemical Threatscitations
- 2021Photoenhanced Degradation of Sarin at Cu/TiO2 Composite Aerogels: Roles of Bandgap Excitation and Surface Plasmon Excitation.citations
- 2020Mesoporous Copper Nanoparticle/TiO2 Aerogels for Room-Temperature Hydrolytic Decomposition of the Chemical Warfare Simulant Dimethyl Methylphosphonatecitations
- 2020Electronic Metal–Support Interactions in the Activation of CO Oxidation over a Cu/TiO2 Aerogel Catalystcitations
- 2020Stabilization of reduced copper on ceria aerogels for CO oxidationcitations
- 2020Power of Aerogel Platforms to Explore Mesoscale Transport in Catalysis.citations
- 2019(Keynote) Effect of Architecturally Expressed Electrodes and Catalysts on Energy Storage/Conversion in Aqueous Electrolytes
- 2019Thermoelectric Properties of Nanocrystalline Silicon Films Prepared by Hot-Wire and Plasma-Enhanced Chemical-Vapor Depositionscitations
- 2018Trapping a Ru₂O₃ Corundum-like Structure at Ultrathin, Disordered RuO₂ Nanoskins Expressed in 3D
- 2018(Invited) Nanoscale Design and Modification of Plasmonic Aerogels for Photocatalytic Hydrogen Generation
- 2018Trapping a Ru2O3 Corundum-like Structure at Ultrathin, Disordered RuO2 Nanoskins Expressed in 3Dcitations
- 2017Oxidation-stable plasmonic copper nanoparticles in photocatalytic TiO2 nanoarchitecturescitations
- 2017Plasmonic Aerogels as a Three-Dimensional Nanoscale Platform for Solar Fuel Photocatalysiscitations
- 2017Effects of Nanoscale Interfacial Design on Photocatalytic Hydrogen Generation Activity at Plasmonic Au–TiO<sub>2</sub> and Au–TiO<sub>2</sub>/Pt Aerogels
- 2017Demonstrating the Activity and Stability of Conformal RuO<sub>2</sub> "Nanoskins" on Technologically-Relevant, 3D Electrode Suports for Water Oxidation in Acid Electrolyte
- 2017Oxidation−Stable Plasmonic Copper Nanoparticles in Photocatalytic TiO<sub>2</sub> Nanoarchitectures
- 2017Competitive Oxygen Evolution in Acid Electrolyte Catalyzed at Technologically Relevant Electrodes Painted with Nanoscale RuO2citations
- 2017Electroless Deposition of Disordered RuO<sub>2</sub> Nanoskins: An Example from the Fourth Quadrant of Electronic Materials
- 2016Aerogel Architectures Boost Oxygen‐Evolution Performance of NiFe2Ox Spinels to Activity Levels Commensurate with Nickel‐Rich Oxidescitations
- 2013Plasmonic enhancement of visible-light water splitting with Au-TiO2 composite aerogels.citations
- 2013Electron Tomography of Gold Nanoparticles in Titania Composite Aerogels: Probing Structure to Understand Photochemistry
- 2012Nanoscale structure of Ti1−xNbyO2 mixed-phase thin films: Distribution of crystal phase and dopants
- 2011Effect of oxygen deficiency on the photoresponse and reactivity of mixed phase titania thin filmscitations
Places of action
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article
Oxidation−Stable Plasmonic Copper Nanoparticles in Photocatalytic TiO<sub>2</sub> Nanoarchitectures
Abstract
<jats:p>We describe the incorporation of plasmonic copper (Cu) nanoparticles into titania (TiO<jats:sub>2</jats:sub>) aerogels and demonstrate surface plasmon resonance (SPR)–driven photoelectrochemical oxidation of methanol under visible light. Copper could provide a more abundant, less expensive alternative to gold and silver as a visible light–active plasmonic metal, however, the propensity of Cu to oxidize at the expense of its plasmonic character greatly limits its potential applications. Most reports of supported, plasmonic Cu nanoparticles describe the necessity of preventing Cu oxidation by maintaining strictly anoxic environments or relying on surface-obscuring chemical stabilizers. We stabilize plasmonic Cu nanoparticles by establishing extensive interfacial contact between Cu nanoparticles and a TiO<jats:sub>2</jats:sub> aerogel support. The multiple points of contact between 2–3 nm Cu nanoparticles photodeposited at the networked ~10 nm TiO<jats:sub>2</jats:sub> particulates of the aerogel stabilizes Cu against oxidation to an extent that preserves the plasmonic behavior of the nanoparticles, even after long-term exposure to ambient air. The wavelength dependence of photoelectrochemical methanol oxidation at Cu/TiO<jats:sub>2</jats:sub> aerogel photoanodes verifies the plasmonic origin of the photoelectrochemistry. Plasmonic behavior is not seen for Cu photodeposited at a commercially available, non-networked TiO<jats:sub>2</jats:sub> nanopowder in which the primary particle size is ~10× greater than the size of the supported Cu particle. The divergent behavior of Cu when a 3D Cu||oxide interface is formed on aerogel supports compared to the 1D junction between Cu on commercial TiO<jats:sub>2</jats:sub> nanopowder supports highlights the importance of the interfacial design motif on preserving plasmonic Cu. </jats:p><jats:p></jats:p>