Abstract
The potential applications of electrochemical energy storage have attracted the interest of both scientific researchers and energy stakeholders. A novel ternary semiconductor, Sb2S3: MnS2: La2S3, synthesized through diethyldithiocarbamate ligand complexation, was investigated for its potential in enhancing charge storage device performance. Sb2S3: MnS2: La2S3 exhibited a wide bandgap of 3.72 eV, attributed to its high photoactivity. Characterization revealed a mixed-phase crystalline structure with an average crystallite size of 47.71 nm. Infrared spectroscopy identified metallic sulfide bonds within the 530–949 cm−1 range. Sb2S3: MnS2: La2S3 displayed a unique morphology resembling sugar cubes with a high surface-to-volume ratio. Electrochemical evaluation was conducted using a standard three-electrode setup with 1 M KOH as the electrolyte. Semiconducting Sb2S3: MnS2: La2S3 demonstrated exceptional electrochemical properties, exhibiting a specific capacitance of up to 1006.35 F g−1 and a specific power density of 7422.95 W kg−1. The low internal resistance (Rs = 1.16 Ω) further supports the Sb2S3: MnS2: La2S3's potential as a promising electrode for energy storage applications.
| Original language | English |
|---|---|
| Article number | 115354 |
| Journal | Journal of Energy Storage |
| Volume | 110 |
| Early online date | 15 Jan 2025 |
| DOIs | |
| Publication status | Published - 28 Feb 2025 |
Funding
Also, the authors want to acknowledge the Higher Education Commission, Pakistan for provisioning of National Research Program for Universities (NRPU–15782). The authors acknowledge and extend their appreciation to the Researchers Supporting Project Number (RSP2025R124), King Saud University, Riyadh, Saudi Arabia.
Keywords
- Electrochemical behavior
- Metal sulphides
- Transition metals
- Specific capacitance
- Supercapacitors