期刊
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
卷 920, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jelechem.2022.116641
关键词
Tin oxides; Flower-like nanostructure; Asymmetric; Supercapacitor; Energy; Power
资金
- King Saud University, Riyadh, Saudi Arabia [RSP-2021/8]
- National Research Foundation of Korea [NRF-2019R1A5A8080290]
The hydrothermally synthesized Sn3O4 flower-type nanostructure exhibits high electrochemical activity and charge storage in supercapacitors, and when combined with activated carbon in an asymmetric device, it shows promising performance.
Designing novel nanostructured electrode materials is a vital step to upgrade electrochemical applications. Certain facile methods are followed to develop nanomaterials with unique morphology that could encourage electrode activity in a supercapacitor. Here we have explored the electrochemical behavior of hydrothermal synthesized Sn3O4 flower-type nanostructured for supercapacitor application. It is found that the mixed state of fin oxide (Sn3O4) is highly electroactive in 3 M KOH electrolyte which exhibited a high specific capacity of 194 C g(-1). Such high charge storage may be due to the 3D-marigold flower-type morphology of Sn3O4 nanoparticles that could provide ample space for electrode-electrolyte interaction. The thin nanoflakes also afford a large number of active surfaces for the charging-discharging process. Further, the electrode was implemented in an asymmetric device with activated carbon. The device delivered 34.4 Wh/kg energy density at a 775 W/kg power density with 99.8% Coulombic efficiency for 5000 cycles. Thus, the Sn3O4 flower-type nanostructure is potential electrode material for charge storage in supercapacitors and the practical applicability of the asymmetric device is proved by illuminating the green light-emitting diode.
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