Abstract
Electrochemical capacitors or supercapacitors are incredibly useful for sustaining pulse power due to their high-power density as compared to batteries. In this study, bulk and nano SnSb have been prepared via the vacuum melting reaction and co-precipitation method. The PXRD, UV–vis spectroscopy, Raman spectroscopy, SEM, and TEM micrographs also X-ray photoelectron spectroscopy are deeply scrutinized to vindicate the structural, optical, vibrational, morphological and oxidation state of the as-synthesized bulk and nano SnSb. The optical bandgap values are found to be 0.77 eV and 0.64 eV for nano and bulk SnSb by the Kubelka-Munk relation. Three electrode systems have been deployed to analyse the electrochemical properties of the bulk and nano SnSb. The bulk and nano SnSb have recorded their highest specific capacitance of 257.31 F/g and 504.46 F/g. Furthermore, nano SnSb is chosen for the fabrication of asymmetrical supercapacitor because of their good electrochemical properties which has recorded a highest power density of 4000 W/Kg and energy density of 7.8 Wh/Kg.
| Original language | English |
|---|---|
| Article number | 172293 |
| Journal | Journal of Alloys and Compounds |
| Volume | 969 |
| DOIs | |
| State | Published - 25 Dec 2023 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2023 Elsevier B.V.
Funding
The authors would like to acknowledge the SRM-IST, Nanotechnology Research Centre (NRC) and the SRM-Central Instruments Facility (SCIF), Kattankulathur, Tamilnadu, 603203, India for supporting with the major instrumentation facilities for our research work.
| Funders | Funder number |
|---|---|
| Nanotechnology Research Centre | 603203 |
| SRM-IST |
Keywords
- Bulk SnSb (B-SnSb)
- Nano SnSb (N-SnSb)
- Pseudo capacitor and supercapacitor