| 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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Freakley, Simon J.
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2022Cyclohexanone ammoximation via in situ H2O2 production using TS-1 supported catalystscitations
- 2021Ambient base-free glycerol oxidation over bimetallic PdFe/SiO2 by in situ generated active oxygen speciescitations
- 2020Isolated Pd Sites as Selective Catalysts for Electrochemical and Direct Hydrogen Peroxide Synthesiscitations
- 2018Homocoupling of phenylboronic acid using atomically dispersed gold on carbon catalysts: catalyst evolution before reactioncitations
Places of action
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article
Isolated Pd Sites as Selective Catalysts for Electrochemical and Direct Hydrogen Peroxide Synthesis
Abstract
<p>Palladium nanoparticles have been studied extensively as catalysts for the direct synthesis of hydrogen peroxide, where selectivity remains a key challenge. Alloying Pd with other metals and using acid and halide promoters are commonly employed to increase H<sub>2</sub>O<sub>2</sub> selectivity; however, the sites that can selectively produce H<sub>2</sub>O<sub>2</sub> have not been identified and the role of these additives remains unclear. Here, we report the synthesis of atomically dispersed PdCl<sub>x</sub>/C as a model catalyst for H<sub>2</sub>O<sub>2</sub> production without the presence of extended Pd surfaces. We show that these isolated cationic Pd sites can form H<sub>2</sub>O<sub>2</sub> with significantly higher selectivity than metallic Pd nanoparticles in both the reaction of H<sub>2</sub> and O<sub>2</sub> and the electrochemical oxygen reduction reaction. These results demonstrate that catalysts containing high populations of isolated Pd sites are selective catalysts for this two-electron reduction reaction and that the performance of materials in the direct synthesis reaction and electrocatalytic oxygen reduction reaction has many similarities.</p>