The evaluation of the electrochemical properties of Co3O4 nanopowders synthesized by autocombustion and solgel methods
- Title
- The evaluation of the electrochemical properties of Co3O4 nanopowders synthesized by autocombustion and solgel methods
- Creator
- Kalpana S.; Bhat V.S.; Hegde G.; Prabhu T.N.; Anantharamaiah P.N.
- Description
- The present investigation involves two synthesis methods, autocombustion (Co3O4-AC) and solgel (Co3O4-SG), for producing nearly spherical-shaped and polygonal shaped nanomaterials of spinel cobalt oxide (Co3O4) respectively as electrode materials. TEM image analysis unveiled distinct particle morphologies for the two samples. The Co3O4-AC particles exhibited a nearly spherical shape, whereas the Co3O4-SG particles displayed a polygonal shape. The phase purity of the Co3O4 samples were confirmed via XRD patterns analysis and the crystallite size was calculated to be 44nm for Co3O4-AC and 36nm for Co3O4-SG. The surface area, estimated via BET experiments, of Co3O4-AC was found to be 15m2/g, while Co3O4-SG exhibited a slightly lower surface area of 11m2/g. Co3O4-AC exhibited a higher specific capacitance (Cs) of 162F/g at 0.25A/g, indicating its superior energy storage capability. On the other hand, Co3O4-SG shows a Cs of 98F/g, indicating slightly lower performance compared to Co3O4-AC. Both nanomaterials exhibited better stability, with more than 85% capacity retention after 5000 chargedischarge cycles. 2023, The Author(s), under exclusive licence to the Institute of Chemistry, Slovak Academy of Sciences.
- Source
- Chemical Papers, Vol-78, No. 1, pp. 343-356.
- Date
- 2024-01-01
- Publisher
- Springer Science and Business Media Deutschland GmbH
- Subject
- Autocombustion; Co3O4; CV; Cycle stability; GCD; Solgel
- Coverage
- Kalpana S., Department of Chemistry, Faculty of Mathematical and Physical Sciences, M. S. Ramaiah University of Applied Sciences, Bangalore, 560058, India; Bhat V.S., Centre for Nano-Materials and Displays (CND), B. M. S. College of Engineering, Bull Temple Road, Bangalore, 560019, India; Hegde G., Department of Chemistry, CHRIST (Deemed to Be University), Hosur RD, Bhavani Nagar, S. G. Palya, Bangalore, 560029, India; Prabhu T.N., Department of Chemistry, Faculty of Mathematical and Physical Sciences, M. S. Ramaiah University of Applied Sciences, Bangalore, 560058, India; Anantharamaiah P.N., Department of Chemistry, Faculty of Mathematical and Physical Sciences, M. S. Ramaiah University of Applied Sciences, Bangalore, 560058, India
- Rights
- All Open Access; Green Open Access
- Relation
- ISSN: 3666352; CODEN: CHPAE
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Kalpana S.; Bhat V.S.; Hegde G.; Prabhu T.N.; Anantharamaiah P.N., “The evaluation of the electrochemical properties of Co3O4 nanopowders synthesized by autocombustion and solgel methods,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/13828.