Cathodic Potentiostatic Electrodeposition and Capacitance Characterization of Manganese Dioxide Film

Electrochemical capacitor study of spherical MnO2 nanoparticles utilizing neutral electrolytes

“…Generally, transition metal oxides and conducting polymers are used as PSC electrode. Among all the metal oxides, hydrated ruthenium oxide (RuO 2 ) showed most excellent performance with an ultimate storage of 720 F g −1 [10]. However, the high cost of ruthenium and the non-ecofriendly nature associated with the use of strong acidic electrolyte such as sulfuric acid have limited from its commercial uses [10][11][12][13].…”

“…Among all the metal oxides, hydrated ruthenium oxide (RuO 2 ) showed most excellent performance with an ultimate storage of 720 F g −1 [10]. However, the high cost of ruthenium and the non-ecofriendly nature associated with the use of strong acidic electrolyte such as sulfuric acid have limited from its commercial uses [10][11][12][13]. Accordingly, the transition metal oxides as alternate electrode materials are being extensively tested by retaining their capacitive characteristics [14].…”

The Electrochemical Performance of Deposited Manganese Oxide-Based Film as Electrode Material for Electrochemical Capacitor Application

“…A similar specific capacitance value is achieved when the technique applied is cathodic potentiostatic electrodeposition. The MnO 2 prepared through cathodic reduction process at a constant potential of 0.55 V (vs. SCE) has achieved around 233 F g À1 [67]. However, instead of a smooth surface which is produced at 0.5 V (vs. SCE) of anodic potential, a rough surface is formed for this cathodic potentiostatic electrodeposition.…”

Electrochromic performance of sol–gel derived amorphous MnO 2 –ZnO nanogranular composite thin films

“…In the last decade, most of the researches about MnO 2 derivatives are mostly focused on the preparation their new compounds with novel chemical and physical properties for various application such as electrochromic multilayered nanocomposite thin film [7,8], elimination of a variety of contaminating species from water [9], biosensor [10], high performance electrode for electrochemical energy storage and supercapacitors [11][12][13]. There are different techniques for preparation of manganese dioxide thin films and their composites such as sol-gel method [14][15][16], chemical bath deposition (CBD) [17], electrodeposition (EP) [18,19], radiofrequency sputtering [20], atomic layer deposition (ALD) [21] and so on. So far, the various composite layers were produced from appropriate amounts of manganese dioxide with another a metal or compound as PPO (poly(phenylene oxide)) on mesoporous MnO 2 , Graphene/MnO 2 , MnO 2 in carbon aerogel, MnO 2 /BC composite, Ag-MnO 2 -polyaniline nanocomposite, MnO 2 /Au hybrid nanowall film, and Mn: ZnO and ZnO-MnO 2 [22][23][24][25][26][27][28][29][30].…”