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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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Fang, Xi -Ya
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Topics
Publications (3/3 displayed)
- 2017Simple fabrication of zeolitic imidazolate framework ZIF-8/polymer composite beads by phase inversion method for efficient oil sorptioncitations
- 2016Solar water oxidation by multicomponent TaON photoanodes functionalized with nickel oxidecitations
- 2016Highly dispersed cobalt oxide on TaON as efficient photoanodes for long-term solar water splittingcitations
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article
Solar water oxidation by multicomponent TaON photoanodes functionalized with nickel oxide
Abstract
<p>Efficient solar-powered water oxidation over the TaON-based anodes requires coupling this photoactive n-type semiconductor to an electrooxidation catalyst to improve the otherwise unsatisfactory activity and stability. Herein, we examine how functionalization with electrodeposited nickel oxide, NiO<sub>x</sub>, affects the performance of screen-printed TaON photoanodes post-necked with titania (TiO<sub>2</sub>–TaON). The effects of the NiO<sub>x</sub> photo-electrodeposition parameters on the microstructure and photocatalytic performance of the resulting anodes are explored. Enhancements in the transient water oxidation photocurrent densities by sixfold vs. unmodified TiO<sub>2</sub>–TaON were achieved with the use of the NiO<sub>x</sub>/TiO<sub>2</sub>–TaON photoanodes. Long-term stability tests reveal a slow but persistent degradation of the performance of the multicomponent photocatalysts under the severely oxidizing conditions of water photo-oxidation coincident with continuous morphological changes in the NiO<sub>x</sub> deposits.</p>