Design Principles of Nitrogen‐Doped Carbon Catalysts for Oxygen Reduction Reaction
Nitrogen‐doped carbon catalysts are attracting significant attention as alternative electrocatalysts to platinum owing to their high activity and durability in fuel cells’ oxygen reduction reaction (ORR), resource availability, and low catalyst cost. Pyridinic nitrogen forms the active site of the O...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-07-01
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| Series: | ChemElectroChem |
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| Online Access: | https://doi.org/10.1002/celc.202500089 |
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| author | Kenji Hayashida Bang Lu Satoru Takakusagi Junji Nakamura Kotaro Takeyasu |
| author_facet | Kenji Hayashida Bang Lu Satoru Takakusagi Junji Nakamura Kotaro Takeyasu |
| author_sort | Kenji Hayashida |
| collection | DOAJ |
| description | Nitrogen‐doped carbon catalysts are attracting significant attention as alternative electrocatalysts to platinum owing to their high activity and durability in fuel cells’ oxygen reduction reaction (ORR), resource availability, and low catalyst cost. Pyridinic nitrogen forms the active site of the ORR and that the reduction of pyridinium ions is discovered and adsorption of molecular oxygen are coupled with a unique reaction mechanism. The deactivation of nitrogen‐doped carbon catalysts in acid electrolytes is attributed to the protonation of pyridinic nitrogen and the associated hydration is reported. This concept is demonstrated by the increased activity of nitrogen‐doped graphene catalysts, whose hydrophobicity is enhanced by the 3D structure. To further enhance the catalytic activity of nitrogen‐doped carbon catalysts, the electronic configuration of the active sites, particularly the degree of electron localization and spin, plays a crucial role. As an example, the introduction of active sites through five‐membered ring structures is presented, along with their characterization by X‐ray absorption spectroscopy. |
| format | Article |
| id | doaj-art-2522a2f81dcd4e50aace6bb6aba75f30 |
| institution | DOAJ |
| issn | 2196-0216 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | ChemElectroChem |
| spelling | doaj-art-2522a2f81dcd4e50aace6bb6aba75f302025-08-20T03:16:43ZengWiley-VCHChemElectroChem2196-02162025-07-011214n/an/a10.1002/celc.202500089Design Principles of Nitrogen‐Doped Carbon Catalysts for Oxygen Reduction ReactionKenji Hayashida0Bang Lu1Satoru Takakusagi2Junji Nakamura3Kotaro Takeyasu4Graduate School of Science and Technology University of Tsukuba 1‐1‐1 Tennodai Tsukuba 305‐8573 Ibaraki JapanInstitute for Catalysis Hokkaido University N21W10 Sapporo 001‐0021 Hokkaido JapanInstitute for Catalysis Hokkaido University N21W10 Sapporo 001‐0021 Hokkaido JapanInternational Institute for Carbon‐Neutral Energy Research (I2CNER) Kyushu University 744 Motooka, Nishi‐ku Fukuoka‐shi 819‐0395 Fukuoka JapanInstitute for Catalysis Hokkaido University N21W10 Sapporo 001‐0021 Hokkaido JapanNitrogen‐doped carbon catalysts are attracting significant attention as alternative electrocatalysts to platinum owing to their high activity and durability in fuel cells’ oxygen reduction reaction (ORR), resource availability, and low catalyst cost. Pyridinic nitrogen forms the active site of the ORR and that the reduction of pyridinium ions is discovered and adsorption of molecular oxygen are coupled with a unique reaction mechanism. The deactivation of nitrogen‐doped carbon catalysts in acid electrolytes is attributed to the protonation of pyridinic nitrogen and the associated hydration is reported. This concept is demonstrated by the increased activity of nitrogen‐doped graphene catalysts, whose hydrophobicity is enhanced by the 3D structure. To further enhance the catalytic activity of nitrogen‐doped carbon catalysts, the electronic configuration of the active sites, particularly the degree of electron localization and spin, plays a crucial role. As an example, the introduction of active sites through five‐membered ring structures is presented, along with their characterization by X‐ray absorption spectroscopy.https://doi.org/10.1002/celc.202500089hydrophobicitynitrogen‐doped carbonsoxygen reduction reactionspyridinic nitrogenreaction mechanisms |
| spellingShingle | Kenji Hayashida Bang Lu Satoru Takakusagi Junji Nakamura Kotaro Takeyasu Design Principles of Nitrogen‐Doped Carbon Catalysts for Oxygen Reduction Reaction ChemElectroChem hydrophobicity nitrogen‐doped carbons oxygen reduction reactions pyridinic nitrogen reaction mechanisms |
| title | Design Principles of Nitrogen‐Doped Carbon Catalysts for Oxygen Reduction Reaction |
| title_full | Design Principles of Nitrogen‐Doped Carbon Catalysts for Oxygen Reduction Reaction |
| title_fullStr | Design Principles of Nitrogen‐Doped Carbon Catalysts for Oxygen Reduction Reaction |
| title_full_unstemmed | Design Principles of Nitrogen‐Doped Carbon Catalysts for Oxygen Reduction Reaction |
| title_short | Design Principles of Nitrogen‐Doped Carbon Catalysts for Oxygen Reduction Reaction |
| title_sort | design principles of nitrogen doped carbon catalysts for oxygen reduction reaction |
| topic | hydrophobicity nitrogen‐doped carbons oxygen reduction reactions pyridinic nitrogen reaction mechanisms |
| url | https://doi.org/10.1002/celc.202500089 |
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