Be Aware of Transient Dissolution Processes in Co 3 O 4 Acidic Oxygen Evolution Reaction Electrocatalysts
Forschungszentrum Jülich · Helmholtz Institute Erlangen-Nürnberg · +4 more institutions
Abstract
Recently, cobalt-based oxides have received considerable attention as an alternative to expensive and scarce iridium for catalyzing the oxygen evolution reaction (OER) under acidic conditions. Although the reported materials demonstrate promising durability, they are not entirely intact, calling for fundamental research efforts to understand the processes governing the degradation of such catalysts. To this end, this work studies the dissolution mechanism of a model Co3O4 porous catalyst under different electrochemical conditions using online inductively coupled plasma mass spectrometry (online ICP-MS), identical location scanning transmission electron microscopy (IL-STEM), and differential electrochemical…
Citation impact
- FWCI
- 21.63
- Percentile
- 100%
- References
- 70
Authors
12- TPTatiana PriamushkoCorresponding
Forschungszentrum Jülich, Helmholtz Institute Erlangen-Nürnberg
- EFEvanie Franz
Friedrich-Alexander-Universität Erlangen-Nürnberg
- ALAnja Logar
University of Nova Gorica, National Institute of Chemistry
- LBLazar Bijelić
University of Nova Gorica, National Institute of Chemistry
- PGPatrick Guggenberger
University of Vienna
Topics & keywords
- Dissolution
- Cobalt
- Chemistry
- Electrochemistry
- Oxygen evolution
- Catalysis
- Pourbaix diagram
- Inductively coupled plasma mass spectrometry