| 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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Fattakhova-Rohlfing, Dina
Forschungszentrum Jülich
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024Enabling High-Performance Hybrid Solid-State Batteries by Improving the Microstructure of Free-Standing LATP/LFP Composite Cathodes
- 2024Blacklight sintering of garnet-based composite cathodes
- 2024Enabling High-Performance Hybrid Solid-State Batteries by Improving the Microstructure of Free-Standing LATP/LFP Composite Cathodes.citations
- 2024Phase-field determination of NaSICON materials in the quaternary system Na2O-P2O5-SiO2-ZrO2: II. Glass-ceramics and the phantom of excessive vacancy formationcitations
- 2024Direct Precursor Route for the Fabrication of LLZO Composite Cathodes for Solid‐State Batteries
- 2023Kinetics and Pore Formation of the Sodium Metal Anode on NASICON‐Type Na$_{3.4}$ Zr$_2$Si$_{2.4}$P$_{0.6}$O$_{12}$ for Sodium Solid‐State Batteries
- 2023Enabling metal substrates for garnet-based composite cathodes by laser sintering
- 2023Optimizing the Composite Cathode Microstructure in All‐Solid‐State Batteries by Structure‐Resolved Simulations
- 2023Oxide ceramic electrolytes for all-solid-state lithium batteries – cost-cutting cell design and environmental impactcitations
- 2022Rapid thermal processing of garnet-based composite cathodescitations
- 2022Kinetics and Pore Formation of the Sodium Metal Anode on NASICON‐Type Na$_{3.4}$ Zr$_2$Si$_{2.4}$P$_{0.6}$O$_{12}$ for Sodium Solid‐State Batteriescitations
- 2022Rapid thermal sintering of screen-printed LiCoO2 filmscitations
- 2020Cellulose Nanocrystal-Templated Tin Dioxide Thin Films for Gas Sensing.
- 2017In situ study of spray deposited titania photoanodes for scalable fabrication of solid-state dye-sensitized solar cellscitations
- 2016Innenrücktitelbild: Zintl Clusters as Wet-Chemical Precursors for Germanium Nanomorphologies with Tunable Composition (Angew. Chem. 7/2016)
- 2016Spray Deposition of Titania Films with Incorporated Crystalline Nanoparticles for All-Solid-State Dye-Sensitized Solar Cells Using P3HTcitations
- 2016Inside Back Cover: Zintl Clusters as Wet-Chemical Precursors for Germanium Nanomorphologies with Tunable Composition (Angew. Chem. Int. Ed. 7/2016)
- 2015Zintl Clusters as Wet-Chemical Precursors for Germanium Nanomorphologies with Tunable Compositioncitations
- 2014Tin doping speeds up hole transfer during light-driven water oxidation at hematite photoanodescitations
- 2014Atomic-layer-deposited aluminum and zirconium oxides for surface passivation of TiO 2 in high-efficiency organic photovoltaicscitations
Places of action
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article
Tin doping speeds up hole transfer during light-driven water oxidation at hematite photoanodes
Abstract
Numerous studies have shown that the performance of hematite photoanodes for light-driven water splitting is improved substantially by doping with various metals, including tin. Although the enhanced performance has commonly been attributed to bulk effects such as increased conductivity, recent studies have noted an impact of doping on the efficiency of the interfacial transfer of holes involved in the oxygen evolution reaction. However, the methods used were not able to elucidate the origin of this improved efficiency, which could originate from passivation of surface electron-hole recombination or catalysis of the oxygen evolution reaction. The present study used intensity-modulated photocurrent spectroscopy (IMPS), which is a powerful small amplitude perturbation technique that can de-convolute the rate constants for charge transfer and recombination at illuminated semiconductor electrodes. The method was applied to examine the kinetics of water oxidation on thin solution-processed hematite model photoanodes, which can be Sn-doped without morphological change. We observed a significant increase in photocurrent upon Sn-doping, which is attributed to a higher transfer efficiency. The kinetic data obtained using IMPS show that Sn-doping brings about a more than tenfold increase in the rate constant for water oxidation by photogenerated holes. This result provides the first demonstration that Sn-doping speeds up water oxidation on hematite by increasing the rate constant for hole transfer.