High-performance α-MnO2 nanowire electrode for supercapacitors

Synthesis of hierarchically porous MnO2/rice husks derived carbon composite as high-performance electrode material for supercapacitors

“…Except for poor electric conductivity (about 10 À5 S cm À1 ), manganese dioxide has attracted extensive attention due to high theoretical capacitance, low cost and environmental compatibility [19][20][21][22]. In addition, MnO 2 exhibit good pseudo-capacitive behavior in neutral aqueous solutions which meet the requirement of ''green electrolyte" [23].…”

“…As a consequence, electrochemical capacitive properties of various transition metal oxides, e.g., RuO 2 , Co 3 O 4 , NiO, V 2 O 5 and MnO 2 , have been widely studied in the last decades [13][14][15][16][17][18]. Except for poor electric conductivity (about 10 À5 S cm À1 ), manganese dioxide has attracted extensive attention due to high theoretical capacitance, low cost and environmental compatibility [19][20][21][22]. In addition, MnO 2 exhibit good pseudo-capacitive behavior in neutral aqueous solutions which meet the requirement of ''green electrolyte" [23].…”

Electrochemical supercapacitors for energy storage and delivery: Advanced materials, technologies and applications

“…Article [4] discusses the development of alpha-phase MnO 2 nanowire based psuedocapacitative electrodes for supercapacitor devices. Paper [5] reports the synthesis and application of new supercapacitor electrodes composed of nickel-manganese oxide deposited on a MWCNT/CFP composite substrate.…”

Synthesis of MnO2Nanowires by Hydrothermal Method and their Electrochemical Characteristics

“…하지만, 다른 전극 재료들에 비해서 가격이 매우 비싸고 친환경 적이지 못한 단점을 가지고 있다. 이외에도 V2O5, Fe2O3, NiO, ZnO, CO3O4, TiO2, MnO2와 같은 여러 전이금속산화물 전극 재료들이 계속 연구되고 있는데, 그중에서도 MnO2는 값이 저렴하고 친환경적이면서 높은 이론용량(1,100 F/g) 특성을 지니고 있어 차세대 전극 소재로 각 광받고 있다 [18][19][20][21]. MnO2 기반의 전극 개발 연구는 이론용량에 다가 가기 위하여 넓은 비표면적과 기공구조를 가지는 구조체 제어기술에 집중되고 있다.…”