The effects of surfactant template concentration on the supercapacitive behaviors of hierarchically porous carbons

• Published in: Journal of power sources Vol. 199; pp. 402 - 408
• Main Authors: Zhang, Xiaoyan, Wang, Xianyou, Su, Jinchang, Wang, Xingyan, Jiang, Lanlan, Wu, Hao, Wu, Chun
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.02.2012; Elsevier
• Subjects: Activated; Applied sciences; Capacitance; Capacitors. Resistors. Filters; Carbon; Current density; Electrical engineering. Electrical power engineering; Electrochemical impedance spectroscopy; Electrochemical performances; Exact sciences and technology; Hierarchically porous carbon; Self assembly; Supercapacitor; Surfactant; Surfactants; Various equipment and components; Voltammetry; Hierarchically porous carbon; Supercapacitor; Electrochemical performances; Surfactant; Self assembly; Galvanostatic method; Specific surface area; Discharge charge cycle; Electrochemical characteristic; Cyclic voltammetry; Current density; Active material; Service life; Potassium hydroxide; Desorption; Electrolytic capacitor; Carbon; Physical properties; Electrochemical properties; Adsorption; Electrolyte; Sol gel process; Electrochemical stability; Self discharge; Specific capacity; Electrochemical impedance spectroscopy

► Hierarchically porous carbons with micro–meso–macro structures prepared by templates. ► Template concentration obviously affects the physical and electrochemical properties. ► Three sections mechanism exists in self-discharge process. The hierarchically porous carbons (HPCs) are prepared by sol–ge...