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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Azam, Siraj |
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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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Garzón-Manjón, Alba
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2024Water-hydroxide trapping in cobalt tungstate for proton exchange membrane water electrolysiscitations
- 2022Elemental (im-)miscibility determines phase formation of multinary nanoparticles co-sputtered in ionic liquidscitations
- 2020Enhanced antibacterial performance of ultrathin silver/platinum nanopatches by a sacrificial anode mechanismcitations
- 2019Combinatorial synthesis of binary nanoparticles in ionic liquids by cosputtering and mixing of elemental nanoparticlescitations
- 2019Toward a paradigm shift in electrocatalysis using complex solid solution nanoparticlescitations
- 2018Controlling the Amorphous and Crystalline State of Multinary Alloy Nanoparticles in An Ionic Liquidcitations
- 2016Synthesis of metal oxide nanoparticles for superconducting nanocomposites and other applications
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article
Water-hydroxide trapping in cobalt tungstate for proton exchange membrane water electrolysis
Abstract
<jats:p>The oxygen evolution reaction is the bottleneck to energy-efficient water-based electrolysis for the production of hydrogen and other solar fuels. In proton exchange membrane water electrolysis (PEMWE), precious metals have generally been necessary for the stable catalysis of this reaction. In this work, we report that delamination of cobalt tungstate enables high activity and durability through the stabilization of oxide and water-hydroxide networks of the lattice defects in acid. The resulting catalysts achieve lower overpotentials, a current density of 1.8 amperes per square centimeter at 2 volts, and stable operation up to 1 ampere per square centimeter in a PEMWE system at industrial conditions (80°C) at 1.77 volts; a threefold improvement in activity; and stable operation at 1 ampere per square centimeter over the course of 600 hours.</jats:p>