Spontaneous ORR activity Drop of Fe-N-C Catalysts Upon Atmospheric Storage - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2023

Spontaneous ORR activity Drop of Fe-N-C Catalysts Upon Atmospheric Storage

Résumé

Iron-Nitrogen-Carbon (Fe-N-C) catalysts are promising materials to replace the scarce and expensive platinum-group materials in proton exchange membrane fuel cells (PEMFC) cathodes. Fe-N-C catalysts can be prepared by multiple ways [1-5], and each synthesis method can be fine-tuned to produce single Fe atoms coordinated to nitrogen atoms (FeN x), identified as the most active sites toward the oxygen reduction reaction (ORR). However, despite these notable efforts, a rapid drop in ORR activity is noticed within the first hours of

Domaines

Catalyse Matériaux
Fichier non déposé

Dates et versions

hal-04206610 , version 1 (13-09-2023)

Identifiants

  • HAL Id : hal-04206610 , version 1

Citer

Keila Teixeira Santos, Kavita Kumar, Laetitia Dubau, Hongxin Ge, Sandrine Berthon-Fabry, et al.. Spontaneous ORR activity Drop of Fe-N-C Catalysts Upon Atmospheric Storage. 243rd Meeting of the Electrochemical Society, The Electrochemical Society, May 2023, Boston, United States. ⟨hal-04206610⟩
42 Consultations
1 Téléchargements

Partager

Gmail Facebook X LinkedIn More