For the first time, toxic bio-tars collected from the gasification of pine sawdust are used as the precursor for activated carbons. Various types of activation agents including KOH, K₂CO₃, H₃PO₄ and ZnCl₂ were screened for obtaining superior activated carbons. When KOH was used as an activation agent, the obtained activated carbons exhibited high specific surface area and large mesopore volume. The activated carbons were further employed to be the electrode material of supercapacitors, and its specific capacitance reached up to 260 F g⁻¹ at 0.25 A g⁻¹ current density. Also, it showed an excellent rate performance from preserving a relatively high specific capacitance of 151 F g⁻¹ at 50 A g⁻¹. The assembled device also exhibited the good electrochemical stability with the capacity retention of 90% after 5000 cycles. Furthermore, the maximum energy density of the activated carbons in organic electrolyte reached 17.8 Wh kg⁻¹.

第一次，从松木屑气化中收集到的有毒生物焦油被用作活性炭的前体。筛选了各种类型的活化剂，包括KOH，K ₂ CO ₃，H ₃ PO ₄和ZnCl ₂以获得优异的活性炭。当使用KOH作为活化剂时，获得的活性炭表现出高的比表面积和大的中孔体积。活性炭进一步使用是超级电容器的电极材料，其比电容达到高达260 F G ^-1在0.25 A克^-1当前密度。另外，由于在50A g ^-1下保持相对较高的151 F g ^-1的比电容，因此显示出优异的速率性能。组装的装置还表现出良好的电化学稳定性，在5000次循环后容量保持率达90％。此外，有机电解质中活性炭的最大能量密度达到17.8 Wh kg ^-1。