This work reports the synthesis of bio-carbonaceous electrode material, carbon soot (CS), by molecular growth of hydrocarbons in a simple chain reaction without any artificial environment. The activated CS (ACS) is derived by burning the mustard oil (wick-and-oil flame synthesis) followed by activation using ZnCl₂. The ACS possesses more ordered layered structure with spherical morphology with higher carbon content as compared to the raw CS. The electrochemical impedance spectroscopy (EIS) studies reveal superior charge-transfer characteristics of the ACS electrodes. The galvanostatic charge–discharge (GCD) studies reveal that the electric double-layer capacitor (EDLC) utilizing the ACS electrodes delivers superior specific capacity of 50 F g⁻¹ at 0.5 mA cm⁻² than that of raw CS (28 F g⁻¹). The EDLC fabricated using activated CS electrode shows excellent power density of 1620 W kg⁻¹ and energy density 20.25 W h kg⁻¹.

这项工作报告了在没有任何人工环境的情况下，通过简单的链式反应中碳氢化合物的分子生长来合成生物碳质电极材料碳烟灰 (CS)。活化的 CS (ACS) 是通过燃烧芥子油（灯芯油火焰合成）然后使用 ZnCl ₂活化得到的。与原始 CS 相比，ACS 具有更有序的层状结构，具有球形形态和更高的碳含量。电化学阻抗谱 (EIS) 研究揭示了 ACS 电极的优异电荷转移特性。恒电流充放电 (GCD) 研究表明，利用 ACS 电极的双电层电容器 (EDLC)在 0.5 mA cm ^{-2 下}提供了 50 F g ^{-1 的}优异比容量与原始 CS (28 F g ^-1 ) 相比。使用活化的 CS 电极制造的 EDLC 显示出 1620 W kg ^{-1 的}优异功率密度和 20.25 W h kg ^{-1 的}能量密度。