in the repository
URN to cite this document: urn:nbn:de:bvb:703-epub-8229-8
Title data
Awin, Eranezhuth Wasan ; Miled, Marwan Ben ; Comminges, Clément ; Habrioux, Aurélien ; Bernard, Samuel ; Schafföner, Stefan ; Motz, Günter:
Unveiling the potential of ultra-low load Co on porous carbon-rich SiCN(O) fibre mats towards oxygen electrocatalysis in alkaline medium.
In: International Journal of Hydrogen Energy.
Vol. 88
(2024)
.
- pp. 956-964.
ISSN 0360-3199
DOI der Verlagsversion: https://doi.org/10.1016/j.ijhydene.2024.09.206
![[thumbnail of 1-s2.0-S0360319924039156-main.pdf]](https://epub.uni-bayreuth.de/style/images/fileicons/application_pdf.png) |
|
||||||||
|
Download (8MB)
|
Project information
| Project financing: |
Deutsche Forschungsgemeinschaft |
|---|
Abstract
The development of efficient and cost-effective catalysts for the oxygen electrocatalysis is crucial for advancing renewable energy technologies, such as fuel cells, electrolyzers and metal-air batteries. Herein, we report the high efficiency of Co nanoclusters generated on porous silicon oxycarbonitride (SiCN(O)) fibre mats towards Oxygen Reduction Reaction (ORR) and Oxygen Evolution Reaction (OER) in alkaline medium. Porous SiCN(O) ceramic fibrous supports were synthesized via electrospinning of a blend of oligosilazane Durazane 1800, polyacrylonitrile and polystyrene followed by an appropriate heat-treatment. Co nanoparticles with a remarkably low mass loading (4wt%) were immobilized on the SiCN(O) fibres for efficient bifunctional catalytic activity towards OER/ORR. The catalysts exhibited ORR activity (onset potential (E₀) of 0.83 V vs. RHE) and excellent stability (80 h) in alkaline medium. Concomitantly, the catalyst required only 1.67 V to drive a current density of 10 mA cm⁻² in 1 M KOH for OER.
Further data
| Item Type: | Article in a journal |
|---|---|
| DDC Subjects: | 600 Technology, medicine, applied sciences > 620 Engineering |
| Institutions of the University: | Faculties > Faculty of Engineering Science > Chair Ceramic Materials > Chair Ceramic Materials - Univ.-Prof. Dr.-Ing. Stefan Schafföner Faculties Faculties > Faculty of Engineering Science Faculties > Faculty of Engineering Science > Chair Ceramic Materials |
| Language: | English |
| Originates at UBT: | Yes |
| URN: | urn:nbn:de:bvb:703-epub-8229-8 |
| Date Deposited: | 19 Feb 2025 06:49 |
| Last Modified: | 19 Feb 2025 06:49 |
| URI: | https://epub.uni-bayreuth.de/id/eprint/8229 |
Download Statistics