Surfactant-assisted electrochemical deposition of α-cobalt hydroxide for supercapacitors
作者： Ting Zhao , Hao Jiang , Jan Ma
DOI: 10.1016/J.JPOWSOUR.2010.06.042
关键词:
摘要: Abstract A N-methylpyrrolidone (NMP) assisted electrochemical deposition route has been developed to realize the synthesis of a dense α-Co(OH) 2 layered structure, which is composed nanosheets, each with thickness 10 nm. The capacitive characteristics as-obtained are investigated by means cyclic voltammetry (CV), charge/discharge characterization, and impedance spectroscopy (EIS), in 1 M KOH electrolyte. results indicate that prepared presence 20 vol.% NMP denser thin structure promotes an increased surface area shortened ion diffusion path. as-prepared shows better performance specific capacitance 651 F g −1 potential range −0.1 0.45 V. These findings suggest surfactant-assisted promising process for building densely packed material systems enhanced properties, application supercapacitors.
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