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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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| 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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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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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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Barman, Jayshree
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Publications (2/2 displayed)
- 2022Nitrogen and Sulfur Enriched Porous Carbon Materials with Trace Fe Derived from Hyper‐Crosslinked Polymer as an Efficient Oxygen Reduction Electrocatalystcitations
- 2022Promising N, P Co‐doped Porous Carbon Materials as Metal‐Free Electrocatalyst for Oxygen Reduction Reaction in Alkaline Mediumcitations
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article
Nitrogen and Sulfur Enriched Porous Carbon Materials with Trace Fe Derived from Hyper‐Crosslinked Polymer as an Efficient Oxygen Reduction Electrocatalyst
Abstract
<jats:title>Abstract</jats:title><jats:p>Exploring and designing a non‐precious metal‐based electrocatalyst for oxygen reduction reactions with high efficiency is imperative for commercializing fuel cell technology. In the present work, an approach to synthesize N, and S ‐doped porous carbon catalysts with trace Fe derived from N, S enriched hyper‐crosslinked polymer for ORR by ZnCl<jats:sub>2</jats:sub> activation at high temperature is described. The optimized catalyst (HCP‐NS<jats:sub>Zn</jats:sub>‐900) exhibited an impressive catalytic activity towards ORR due to its high surface area, excellent porosity, and effective doping of Fe and heteroatoms. Accordingly, HCP‐NS<jats:sub>Zn</jats:sub>‐900 demonstrates a high onset potential of 0.98 V (vs. RHE) with a large diffusion‐limited current density of 4.72 mA cm<jats:sup>−2</jats:sup>, and improved tolerance to methanol crossover, significantly longer durability in contrast to the Pt/C catalyst. Furthermore, HCP‐NS<jats:sub>Zn</jats:sub>‐900 confirmed the 4‐electron transfer selectivity (n∼4.0). Therefore, the synthesized materials could be a potential replacement for Pt/C catalyst for energy conversion technologies.</jats:p>