TY  - EJOU
AU  - Ahmad, J. 
AU  - Naeem-Ur-Rehman, 
AU  - Shakil, M. 
AU  - Saleem, M. 
AU  - Mahmood, K. 
AU  - Ali, A. 
AU  - Imran, M. 
AU  - Sharif, S. 
AU  - Elansary, Hosam O. 
AU  - Mumtaz, S. 
AU  - Khalid, A. D. 

TI  - Improved electrochemical performance of nanostructured CO<sub>3</sub>O<sub>4</sub>/CO<sub>3</sub>S<sub>4</sub> composite for supercapacitor applications
T2  - Chalcogenide Letters

PY  - 2025
VL  - 22
IS  - 4
SN  - 1584-8663

AB  - This study highlights the superior electrochemical performance of Co<sub>3</sub>O<sub>4</sub>/Co<sub>3</sub>S<sub>4</sub> composite nanoparticles for supercapacitors, compared to individual Co<sub>3</sub>O<sub>4</sub> and Co<sub>3</sub>S<sub>4</sub>, synthesized using sol-gel, co-precipitation, and mechanical alloying methods. The composite combines pseudocapacitance and electric double-layer capacitance, as evidenced by cyclic voltammetry. It exhibits a specific capacitance of 722.9 F/g at 0.5 A/g and an energy density of 73.8 Wh/kg at 405 W/kg. Electrochemical impedance spectroscopy reveals low charge transfer resistance and excellent cycling stability is achieved, with 98.5% capacitance retention after 1500 cycles. These results confirm the composite's potential for high-performance energy storage applications.
KW  - Nanostructure
KW  -  Semiconducting
KW  -  Oxide and sulphide
KW  -  Composite
KW  -  Energy storage

DO  - 10.15251/CL.2025.224.277