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Improving Zinc-Ion Batteries' Performance: The Role of Nitrogen Doping in V 2 O 3 /C Cathodes.
- Source :
-
Inorganics . Apr2024, Vol. 12 Issue 4, p117. 18p. - Publication Year :
- 2024
-
Abstract
- This study presents the synthesis and electrochemical evaluation of nitrogen-doped vanadium oxide (N−V2O3/C) as a cathode material for aqueous zinc-ion batteries (AZIBs), using a hydrothermal method. Compared to undoped V2O3/C, N−V2O3/C exhibits enhanced electrical conductivity, capacity, and electrochemical kinetics, attributed to the incorporation of pyridinic and pyrrolic nitrogen. The initial charge–discharge cycles indicate phase transitions to amorphous vanadium oxides, enhancing conductivity. N−V2O3/C shows a high specific capacity of 168.4 mAh g−1 at 10 A g−1 and remarkable reversibility, highlighted by the transient existence of intermediate species during cycling. Optimal electrochemical performance is achieved with a vanadium-to-nitrogen molar ratio of 2:3, indicating the significant impact of the nitrogen doping concentration on the material's efficiency. This work underscores the potential of N−V2O3/C as a superior cathode material for AZIBs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23046740
- Volume :
- 12
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Inorganics
- Publication Type :
- Academic Journal
- Accession number :
- 176874769
- Full Text :
- https://doi.org/10.3390/inorganics12040117