Abstract
Activated carbon (AC) provides surface while carbon nanotubes (CNTs) provide conductive matrix. Ethanol, removable from AC pores, is suitable as dispersant. Few-wall CNTs, dispersible in ethanol, is suitable as CNTs.
Highlights
Electrochemical capacitors (ECs), known as supercapacitors, are receiving increasing attention as possible storage systems for electrical energy
The electrode processed in H2O–sodium dodecylbenzenesulphonate (SDBS) solution had a higher oxygen content (4.17 wt%) than those of the electrodes processed in NMP (2.03 wt%) and EtOH (1.47 wt%), con rming that rinsing with acid resulted in the presence of additional functional groups
Because the overall performance of hybrid electrodes mainly depends on their structure, we systematically examined the materials and process conditions for hybrid electrodes using activated carbon (AC) as a capacitive material and vacuum ltration processing
Summary
Electrochemical capacitors (ECs), known as supercapacitors, are receiving increasing attention as possible storage systems for electrical energy. The effects of factors including the types of solvent and surfactant used to disperse AC and CNTs, AC particle size, SSA of AC, and CNT loading on electrode performance are investigated systematically to achieve hybrid EC electrodes with enhanced capacity and conductivity.
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