Solution synthesis of nanometric layered cobalt oxides for electrochemical applications

Dodecyl sulfate-induced fast faradic process in nickel cobalt oxide–reduced graphite oxide composite material and its application for asymmetric supercapacitor device

“…To further elucidate the cause of the rise in the capacitance, the Trasatti procedure was performed. 39,40 This allows us to discriminate charge storage due to the easily accessible surface (outer, q o ) and not easily accessible surface (inner, q i ). The specific charge (q * ) is the total charge exchanged between electrode and electrolyte, including both inner and outer charge storage, as shown in eqn (3).…”

Ionic liquids to monitor the nano-structuration and the surface functionalization of material electrodes: a proof of concept applied to cobalt oxyhydroxide

“…[9][10][11] Several metal oxides/(oxy)hydroxides such as RuO 2 , MnO 2 , Co(OH) 2 , Ni(OH) 2 , Co 3 O 4 , HCoO 2 , and NiCoO 2 have been widely investigated and show promising features. [12][13][14][15][16][17][18][19][20][21] However, for all of them, nano-structuration to optimize the electrode-electrolyte interface and a conductive scaffold to improve their electronic conductivity are crucial for maximizing their performances. [22][23][24] Among all these electrode materials, non-stoichiometric layered cobalt oxyhydroxide (HCoO 2 ) offers a two dimensional structure suitable for fast ionic diffusion as well as a good intrinsic electronic conductivity due the high oxidation state of cobalt, which favors electron transportation.…”

A polydopamine coated polyaniline single wall carbon nanotube composite material as a stable supercapacitor cathode in an organic electrolyte

“…To further understand the electrochemical energy storage behavior of sample PS and sample DPS-1 in the 1 M LiClO 4 , scan rate dependent Trasatti analysis was carried out at different scan rates. 26,27 This allows us to discriminate charge storage due to easily accessible surfaces (outer, q o ) and the inner surfaces (inner, q i ). The specific charge (q*) is the total charge exchanged between the electrode and the electrolyte, including both inner and outer charge storage, as shown in Eq.…”