Supercapacitive properties of ultra-fine MnO2 prepared by a solid-state coordination reaction

Structural-controlled synthesis of manganese oxide nanostructures and their electrochemical properties

“…Comparing with other transition-metal oxide electrode materials, Mn oxides appear to be a promising material with the advantage of low-cost and environmental friendliness and the ability to charge-discharge rapidly [29][30][31][32][33]. The various Mn oxide nanostructures synthesized from single Mn 3 O 4 precursors provide a promising system to understand the relationship between the charge-storage characteristics of MnO 2 -based electrodes and the corresponding microstructures.…”

Synthesis of layered birnessite-type manganese oxide thin films on plastic substrates by chemical bath deposition for flexible transparent supercapacitors

“…Among all the crystallographic forms of manganese oxide [20][21][22][23][24], the use of birnessite-type MnO 2 has become popular due to its layered structure, which is beneficial for the intercalation and deintercalation of H + or alkali metal cations, and shows promising properties in enhancing the special capacitance [25]. Although layered birnessite-type MnO 2 thin films can be prepared by the sol-gel method [26,27], electrostatic spray [28], hydrothermal synthesis [29,30], and electrodeposition [31], large-scale industrial production via these approaches will be limited due to their harsh reaction conditions, energy consuming and complicated procedures.…”

Supercapacitor behavior of CuO–PAA hybrid films: Effect of PAA concentration

“…According to the charge storage mechanism, the supercapacitors are classified into two types: (i) an electrochemical double layer capacitor (EDLC) that stores the energy non-Faradically by the accumulation of the charges at the electrode-electrolyte interface and (ii) redox capacitor that stores the energy Faradically by battery-type oxidation reduction reactions leading to the pseudocapacitive behavior [3]. Various transition metal oxides, such as RuO 2 , MnO 2 , Co(OH) 2 , Li 2 FeSiO 4 , and V 2 O 5 have been investigated as possible electrode materials for high-power electrochemical pseudocapacitors [4][5][6][7][8].…”