Intermetallic Fe6Ge5 formation and decay of a core–shell structure during the oxygen evolution reaction

Intermetallic Fe6Ge5 formation and decay of a core–shell structure during the oxygen evolution reaction

Herein, we report on intermetallic iron germanide (Fe6Ge5) as a novel oxygen evolution reaction (OER) precatalyst with a Tafel slope of 32 mV dec−1 and an overpotential of 272 mV at 100 mA cm−2 in alkaline media. Furthermore, we uncover the in situ formation of a core–shell like structure that slowl...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Chemical communications (Cambridge, England) England), 2021-03, Vol.57 (17), p.2184-2187
Hauptverfasser: J Niklas Hausmann, Khalaniya, Roman A, Das, Chittaranjan, Remy-Speckmann, Ina, Berendts, Stefan, Shevelkov, Andrei V, Driess, Matthias, Menezes, Prashanth W
Format: Artikel
Sprache:eng
Schlagworte:
Core-shell structure
Oxygen evolution reactions
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Herein, we report on intermetallic iron germanide (Fe6Ge5) as a novel oxygen evolution reaction (OER) precatalyst with a Tafel slope of 32 mV dec−1 and an overpotential of 272 mV at 100 mA cm−2 in alkaline media. Furthermore, we uncover the in situ formation of a core–shell like structure that slowly collapses under OER conditions.
ISSN:1359-7345
1364-548X
DOI:10.1039/d0cc08035g