Carbon nanofibers grown on activated carbon fiber fabrics as electrode of supercapacitors
Carbon nanofibers (CNFs) were grown directly on activated carbon fiber fabric (ACFF), which was then used as the electrode of supercapacitors. Cyclic voltammetry and ac impedance were used to characterize the electrochemical properties of ACFF and CNF/ACFF electrodes in both aqueous and organic electrolytes. ACFF electrodes show higher specific capacitance than CNF/ACFF electrodes due to larger specific surface area. However, the spaces formed between the CNFs in the CNF/ACFF electrodes are more easily accessed than the slit-type pores of ACFF, and much higher electrical-double layer capacitance was obtained for CNF/ACFF electrodes.
Tse-Hao Ko Kai-Hsuan Hung Shinn-Shyong Tzeng Jin-Wei Shen Cheng-Hsin Hung
Department of Materials Science and Engineering, Feng Chia University, Taichung 400, Taiwan Department of Materials Engineering, Tatung University, Taipei 104, Taiwan
国际会议
第二届功能原料国际研讨会(The 2rd International Symposium on Functional Materials)
杭州
英文
80-84
2007-05-16(万方平台首次上网日期,不代表论文的发表时间)