Institute of Carbon Technology, Jeonju University, 303 Cheonjam-ro, Wansan-gu, Jeonju-si, Jeollabuk-do 55069, Korea.
Molecules. 2020 Aug 29;25(17):3951. doi: 10.3390/molecules25173951.
For the preparation of activated carbon papers (APCs) as supercapacitor electrodes, impurity substances were removed from rice husks, before carbonization and various activation temperature treatments, to optimize electro chemical efficiency. The porosities and electrochemical performances of the ACPs depended strongly on activation temperature: The specific surface area increased from 202.92 (500 °C) to 2158.48 m g (1100 °C). XRD and Raman analyses revealed that ACP graphitization also increased with the activation temperature. For activation at 1100 °C, the maximum specific capacitance was 255 F g, and over 92% of its capacitance was retained after 2000 cycles.
为了制备作为超级电容器电极的活性炭纸 (APCs)，在碳化和各种活化温度处理之前，去除稻壳中的杂质物质，以优化电化学效率。APCs 的孔隙率和电化学性能强烈依赖于活化温度：比表面积从 202.92（500°C）增加到 2158.48 m g（1100°C）。XRD 和 Raman 分析表明，ACP 的石墨化程度也随活化温度的升高而增加。在 1100°C 下活化时，最大比电容为 255 F g，并且在 2000 次循环后保留了其电容的 92%以上。
