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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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Sažinas, Rokas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Continuous-flow electrosynthesis of ammonia by nitrogen reduction and hydrogen oxidationcitations
- 2023Continuous-flow electrosynthesis of ammonia by nitrogen reduction and hydrogen oxidationcitations
- 2019Silver Modified Cathodes for Solid Oxide Fuel Cellscitations
- 2019Silver Modified Cathodes for Solid Oxide Fuel Cellscitations
- 2019Surface reactivity and cation non-stoichiometry in BaZr 1−x Y x O 3−δ (x = 0–0.2) exposed to CO 2 at elevated temperaturecitations
- 2018Novel Processing of Cathodes for Solid Oxide Fuel Cells
- 2017Stability and cation diffusion in BaZrO3-based proton conducting solid state electrolytes
Places of action
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article
Continuous-flow electrosynthesis of ammonia by nitrogen reduction and hydrogen oxidation
Abstract
<p>Ammonia is a critical component in fertilizers, pharmaceuticals, and fine chemicals and is an ideal, carbon-free fuel. Recently, lithium-mediated nitrogen reduction has proven to be a promising route for electrochemical ammonia synthesis at ambient conditions. In this work, we report a continuous-flow electrolyzer equipped with 25-square centimeter-effective area gas diffusion electrodes wherein nitrogen reduction is coupled with hydrogen oxidation. We show that the classical catalyst platinum is not stable for hydrogen oxidation in the organic electrolyte, but a platinum-gold alloy lowers the anode potential and avoids the decremental decomposition of the organic electrolyte. At optimal operating conditions, we achieve, at 1 bar, a faradaic efficiency for ammonia production of up to 61 ± 1% and an energy efficiency of 13 ± 1% at a current density of −6 milliamperes per square centimeter.</p>