ItemArticle

Fe doped ZnO nanomaterials for energy storage applications as high-capacitance supercapacitor electrodes

Title
Fe doped ZnO nanomaterials for energy storage applications as high-capacitance supercapacitor electrodes
Creator
Veerabhadraiah, Srikanth R.; Soman, Gowri; Bhat, Sachin A.; Sharma, Rohit K.; Thimmappa, Ravikumar; Mirle, Chinmaya; Hegde, Gurumurthy; Yelamaggad, C.V.; Naik, Nagaraja
Description
Enhancing the performance of electrode materials is essential for developing high-capacitance supercapacitors, and transition-metal-doped metal oxides have shown particular promise in this regard. In this work, Fe-doped ZnO nanostructures were synthesized using a sonochemical method and systematically examined through XRD, SEM, TEM, XPS and UVvis analyses to verify Fe incorporation and the resulting changes in crystallinity, morphology and optical behaviour. The structural modifications induced by Fe were evident in the electrochemical response, with the optimized ZnOFe sample delivering a specific capacitance of 11.4 F g?1 at 0.1 A g?1 in the two-electrode system and 462 F g?1 in the three-electrode system, both measured in 3 M KOH electrolyte. A CR2032 coin cell assembled with this material achieved an energy density of 1.6 Wh kg?1 and a power density of 2890.93 W kg?1, demonstrating an effective balance between energy storage and power output. These findings highlight the suitability of Fe-doped ZnO as a tunable electrode material and support its further exploration in advanced supercapacitor systems. This journal is The Royal Society of Chemistry, 2026.
Source
RSC Advances;Volume;16;Issue;27;pp.24997-25010
Date
01-01-2026
Publisher
Royal Society of Chemistry
Coverage
Veerabhadraiah S.R., Department of Studies in Chemistry, Manasagangotri, University of Mysore, Mysuru, 570006, India; Soman G., Department of Chemistry, Christ University, Hosur Road, Bengaluru, 560029, India; Bhat S.A., Centre for Nano and Soft Matter Sciences, Bengaluru, 562162, India; Sharma R.K., Centre for Nano and Soft Matter Sciences, Bengaluru, 562162, India; Thimmappa R., Department of Energy Science and E-Mobility, Atria University, Bengaluru, 560024, India; Mirle C., Institute of Organic and Macromolecular Chemistry, Ulm University, Albert-Einstein-Allee11, Ulm, 89081, Germany; Hegde G., Department of Chemistry, Christ University, Hosur Road, Bengaluru, 560029, India, Department of Chemistry, B. N. M. Institute of Technology, Banashankari, Karnataka, Bengaluru, 560070, India; Yelamaggad C.V., Centre for Nano and Soft Matter Sciences, Bengaluru, 562162, India; Naik N., Department of Studies in Chemistry, Manasagangotri, University of Mysore, Mysuru, 570006, India
Rights
All Open Access; Gold Open Access; Green Open Access
Relation
ISSN: 20462069; CODEN: RSCAC
Format
online
Language
English
Type
Article

Citation

Veerabhadraiah, Srikanth R.; Soman, Gowri; Bhat, Sachin A.; Sharma, Rohit K.; Thimmappa, Ravikumar; Mirle, Chinmaya; Hegde, Gurumurthy; Yelamaggad, C.V.; Naik, Nagaraja, “Fe doped ZnO nanomaterials for energy storage applications as high-capacitance supercapacitor electrodes,” CHRIST (Deemed To Be University) Institutional Repository, accessed June 18, 2026, https://archives.christuniversity.in/items/show/22609.

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