Controlled synthesis of hierarchical polyaniline nanowires/ordered bimodal mesoporous carbon nanocomposites with high surface area for supercapacitor electrodes

Composites of MnO2 nanocrystals and partially graphitized hierarchically porous carbon spheres with improved rate capability for high-performance supercapacitors

“…Thus, a low energy density (<10 Wh kg À1 ) is usually obtained. By comparison, pseudocapacitors based on inorganic non-carbon based materials (e.g., RuO 2 ) store much higher charge (>1000 F g À1 ) through reversible faradaic reactions [13][14][15][16][17]. Therefore, seeking novel pseudocapacitive materials with high capacitance is one of the key research themes in this field [18].…”

Facile synthesis of tremella-like MnO2 and its application as supercapacitor electrodes

“…In recent years, electrochemical supercapacitors have received a great deal of attention due to their high power energy, high charge-discharge efficiency and long cycle life [1][2][3][4][5]. Generally speaking, the performance of the supercapacitors is predominantly determined by the electrode materials [1].…”

Hierarchically porous carbon derived from an aqueous curable composition for supercapacitors

“…By investigating the behavior of electric double-layer capacitors, large specific surface area, synergistic effect of micropores/mesopores/macropores, and adequate pore size distribution have been confirmed playing extremely crucial roles for the electrode materials to obtain superior electrochemical performance [1][2][3][4][9][10][11][12][13][14][15][16][17][18]. Up to now, various porous carbons including carbide-derived carbon [19][20][21][22][23], activated carbon [18,[23][24], carbon fiber [25], carbon nanotube [25][26][27][28] and graphene [25,29,30], have been considered to be suitable electrode materials for electric double-layer capacitors, on account of their large specific surface area, synergy of hierarchical pores, suitable pore size distribution and good conductivity.…”