TÍNH CHẤT SIÊU TỤ ĐIỆN HÓA CỦA VẬT LIỆU MANGAN ĐIOXIT PHA TẠP NIKEN OXIT TỔNG HỢP THEO PHƯƠNG PHÁP SOL-GEL
In this study, manganese dioxide material doped with nickel oxide are synthesized by sol-gel method. Electrochemical properties of the synthesized material was studied using cyclic oltammetry (CV) in 0.5 M Na2SO4 aqueous electrolyte. Results showed that manganese dioxide doped with nickel oxide exhibits a specific capacitance of 362 F/g. After 1000 cycle tests, material maintain 79.8% of its initial specific capacitance.