Fabrication of High-Performance Asymmetric Supercapacitor Utilizing Tin Oxide Nanorods and Carbon-Based Electrodes

• Published in: Journal of electronic materials Vol. 53; no. 1; pp. 547 - 556
• Main Authors: Babu, I. Manohara, Rathinamala, I.
• Format: Journal Article
• Language: English
• Published: New York Springer US 2024; Springer Nature B.V
• Subjects: Activated carbon; Asymmetry; Characterization and Evaluation of Materials; Chemistry and Materials Science; Electrochemical analysis; Electrodes; Electrolytes; Electronics and Microelectronics; Electrons; Energy storage; Graphite; Instrumentation; Materials Science; Metal oxides; Microscopy; Morphology; Nanorods; Optical and Electronic Materials; Original Research Article; Sodium dodecyl sulfate; Solid State Physics; Supercapacitors; Surfactants; Thin films; Tin; Tin dioxide; Tin oxides; sodium dodecyl sulfate; Tin oxide; supercapacitor
• ISSN: 0361-5235; 1543-186X
• DOI: 10.1007/s11664-023-10803-1

SnO 2 nanorods were synthesized via a simple, facile, and cost-effective co-precipitation route using sodium dodecyl sulfate (SDS) as a surfactant. The structural, morphological, and electrochemical properties of the prepared SnO 2 nanorods were investigated. Morphological analysis revealed the formation of rods due to the presence of anionic surfactant. Electrochemical analysis of the electrodes in an alkaline electrolyte revealed the pseudocapacitive behavior of the nanorods of SnO 2 . The tin oxide nanorods were capable of delivering maximum specific capacitance of 108 F g −1 at a specific current of 2 A g −1 . Moreover, an asymmetric supercapacitor was fabricated utilizing SnO 2 and activated carbon (AC) as electrodes. The fabricated two-electrode cell has remarkable power density of 1234 W kg −1 . From these measurements, it can be concluded that SnO 2 appears to be a promising pseudocapacitor material. Graphical Abstract