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Abstract
The aim of the conducted research was to develop hybrid nanostructures formed from MnCo2O4 and exfoliated graphite. Carbon added during the synthesis allowed for obtaining a well-distributed MnCo2O4 particle size with exposed active sites contributing to the increased electric conductivity. The influence of the weight ratios of carbon to a catalyst for hydrogen and oxygen evolution reactions was investigated. The new bifunctional catalysts for water splitting were tested in an alkaline medium with excellent electrochemical performance and very good working stability. The results for hybrid samples show better electrochemical performance compared to the pure MnCo2O4. The highest electrocatalytic activity was for sample MnCo2O4/EG (2/1), where the value of the overpotential was 1.66 V at 10 mA cm−2, and also for this sample a low value of Tafel slope (63 mV dec−1) was denoted.
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Authors (6)
-
Malgorzata Skorupska
-
Kinga Kowalska
-
Magdalena Tyc
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Anna Ilnicka
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Jerzy P. Lukaszewicz
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1039/D3RA00589E
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
RSC Advances
no. 13,
pages 10215 - 10220,
ISSN: 2046-2069 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Skorupska M., Kowalska K., Tyc M., Ilnicka A., Szkoda M., Lukaszewicz J. P.: Exfoliated graphite with spinel oxide as an effective hybrid electrocatalyst for water splitting// RSC Advances -,iss. 15 (2023), s.10215-10220
- DOI:
- Digital Object Identifier (open in new tab) 10.1039/d3ra00589e
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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