| 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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Salminen, Turkka
Tampere University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024Influence of displacement amplitude on fretting-induced friction and wear of steel in oil-lubricated contactcitations
- 2024Investigating Impact-Induced Deformation in Cold-Sprayed Aluminum-Quasicrystals Composite Coatings
- 2023Cold sprayed Aluminum-Quasicrystal Composite Coating: Bonding Mechanism Evaluation by SEM and TEM
- 2023High-Entropy Carbides:Processing And Characterization
- 2023High-Entropy Carbides: Processing And Characterization
- 2023Chemical interactions in composites of gellan gum and bioactive glass: self-crosslinking and in vitro dissolutioncitations
- 2022Plasmonic Ag–Au/TiO2 nanocomposites for photocatalytic applications
- 2022Influence of Photodeposition Sequence on the Photocatalytic Activity of Plasmonic Ag–Au/TiO2 Nanocompositescitations
- 2021Synthesis, Characterization, and Optical Properties of Ytterbium(III) Phosphates and Their Incorporation in Different Glass Matricescitations
- 2020Hematite Surface Modification toward Efficient Sunlight-Driven Water Splitting Activity : The Role of Gold Nanoparticle Additioncitations
- 2020Hematite Surface Modification toward Efficient Sunlight-Driven Water Splitting Activitycitations
- 2020Tribocorrosion behaviour of tin bronze CuSn12 under a sliding motion in NaCl containing environmentcitations
- 2019Highly ductile amorphous oxide at room temperature and high strain ratecitations
- 2019Highly ductile amorphous oxide at room temperature and high strain ratecitations
- 2019Tribocorrosion behaviour of two low-alloy steel grades in simulated waste solutioncitations
- 2019Automated solvent vapor annealing with nanometer scale control of film swelling for block copolymer thin filmscitations
- 2019Automated solvent vapor annealing with nanometer scale control of film swelling for block copolymer thin filmscitations
- 2019Behaviour of leaded tin bronze in simulated seawater in the absence and presence of tribological contact with alumina counterbodycitations
- 2018Persistent luminescent borosilicate glasses using direct particles doping methodcitations
- 2018Influence of the phosphate glass melt on the corrosion of functional particles occurring during the preparation of glass-ceramicscitations
- 2018Tribocorrosion behaviour of aluminium bronze in 3.5 wt.% NaCl solutioncitations
- 2018Decomposition of persistent luminescent microparticles in corrosive phosphate glass meltcitations
- 2018Luminescence of Er3+ doped oxyfluoride phosphate glasses and glass-ceramicscitations
- 2017Effect of Partial Crystallization on the Structural and Luminescence Properties of Er3+-Doped Phosphate Glassescitations
- 2017Novel Er3+ doped phosphate glass-ceramics for photonicscitations
- 2017Effect of Partial Crystallization on the Structural and Luminescence Properties of Er3$-Doped Phosphate Glassescitations
- 2017Thermal, structural and in vitro dissolution of antimicrobial copper-doped and slow resorbable iron-doped phosphate glassescitations
- 2017Upconversion in low rare-earth concentrated phosphate glasses using direct NaYF4citations
- 2015Enhanced photoactive and photoelectrochemical properties of TiO2 sol-gel coated steel by the application of SiO2 intermediate layercitations
- 2015Te-doping of self-catalyzed GaAs nanowirescitations
- 2013Production of Nanomaterials by Pulsed Laser Ablation
Places of action
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article
Hematite Surface Modification toward Efficient Sunlight-Driven Water Splitting Activity
Abstract
<p>Localized surface plasmon resonance has been investigated to enhance light harvesting in hematite-based photoelectrodes modified with gold nanoparticles (AuNPs); meanwhile, an extensive understanding about the different processes involved in the hematite-AuNP system remains unclear. This work addresses a majority of effects associated with AuNP addition by comparing charge transfer, catalytic and light harvesting efficiencies. The obtained results revealed that the lower AuNP amount leads to a higher photocurrent response of 1.20 mA cm<sup>-2</sup> at 1.23 V<sub>RHE</sub> in comparison with all photoelectrodes designed here. X-ray photoelectron data revealed that hematite photoelectrodes loaded with higher concentrations of AuNPs immersed in an alkaline electrolyte showed hydrated/oxidized gold phase formation at the electrode/electrolyte interface. This change on the semiconductor-metal interface may affect the conductivity impairing the photocatalytic performance because of the passivation layer on the AuNP surface, decreasing the efficiency of charge transfer. Notoriously, increasing AuNP amount supported on the hematite surface clearly promoted higher light absorption, which was surprisingly not followed by photoelectrochemical efficiency. This result suggests here that the plasmon effect is not a dominant phenomenon that drives the photoelectrode performance. In fact, a deeper analysis showed that the loaded hematite photoelectrodes with low amounts of AuNPs provides a Schottky contact at the semiconductor-metal interface leading to Fermi level equilibration enhancing charge transport efficiency, which is classified as the predominant effect leading to higher photoresponse in the system.</p>