Electrochemical investigation of crinum asiaticum-like BaO-CeO2 nanostructure for high-performance asymmetric supercapacitor
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
In this study, barium oxide-cerium oxide (BaO-CeO2) thin films with a Crinum asiaticum flower-like morphology were fabricated using the sequential ionic layer adsorption and reaction (SILAR) technique. X-ray diffraction (XRD) analysis confirmed their polycrystalline structure, while structural, elemental, and compositional studies validated their suitability as electrode materials for supercapacitors. The BaO-CeO2 thin films exhibited excellent electrochemical stability and high performance, achieving a specific capacitance (SC) of 880 F/g in a 1 M potassium hydroxide (1 M KOH) electrolyte, with 97 % capacitance retention after 6,500 cycles. When assembled into an asymmetric solid-state supercapacitor device (ASSD), the electrodes delivered an energy density of 17.8 Wh/kg and a power density of 6.9 kW/kg, maintaining 98 % capacitance over5000 cycles. The ASSD successfully powered a green light-emitting diode, demonstrating its economic feasibility and practical potential for cost-effective energy storage applications.
Date Issued
2025-07
Date Acceptance
2025-03-18
Citation
Inorganic Chemistry Communications, 2025, 177
ISSN
1387-7003
Publisher
Elsevier BV
Start Page
114370
End Page
114370
Journal / Book Title
Inorganic Chemistry Communications
Volume
177
Copyright Statement
Copyright © 2025 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies. This is the author’s accepted manuscript made available under a CC-BY licence in accordance with Imperial’s Research Publications Open Access policy (www.imperial.ac.uk/oa-policy)
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Publication Status
Published
Article Number
114370
Date Publish Online
2025-03-22