The Influence of Specific Surface Area on the Capacitance of the Carbon Electrodes Supercapacitor Article Swipe

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Supercapacitor Carbon black Electrode Capacitance Carbon fibers Materials science Specific surface area Activated carbon Capacitive sensing Chemical engineering Conductivity Composite material Chemistry Organic chemistry Composite number Electrical engineering Adsorption Catalysis Natural rubber Physical chemistry Engineering

Chih-Ming Wang , Chih-Yu Wen , Ying‐Chung Chen , Jui-Yung Chang , Chia-Wei Ho , Kuo-Sheng Kao , Wei-Che Shih , Chun-Ming Chiu , Y. R. Shen ·

YOU? · · 2015 · Open Access · · DOI: https://doi.org/10.12792/iciae2015.077 · OA: W2323011502

In this study, the carbon electrode supercapacitors were fabricated using various specific surface areas of active carbon and contents of carbon black. The carbon black was added to increase conductivity of the carbon electrode. To find the optimal processing parameters of the carbon electrode, the effects of various specific surface areas of activated carbon and amounts of carbon black on the capacitive properties of the supercapacitor are investigated. The experimental results showed that the optimum carbon electrode can be obtained using mesocarbon microbeads with a high-specific surface area (2685 m 2 /g), a larger pore volume (0.6 cm 3 /g), and by adding 10 wt.% carbon black. The specific capacitance of the carbon electrode in 1 M KOH is 171.2 F/g.