The heteroatom self-doped activated carbon hollow fibers from liquefied wood (ACHFs) were prepared by melt spinning, half-curing, carbonization and activation using steam. The results showed that the ACHFs with N and P doping exhibited high specific surface area (1896.6–2040.8 m 2 g −1 ) and total pore volume (1.02–1.058 cm 3 g −1 ). It was also found that the mechanisms of P from catalyst and N from curing agent were different in the formation of pore structure of ACHFs. When applied to supercapacitor, the ACHF-N10P16 can deliver a high specific capacitance of 151 F g −1 at current density of 1 A g −1 in 6 M KOH electrolyte. In addition, ACHFs displayed the synergistic advantages of pseudo-capacitance and double-layer capacitance because of N and P doping. As a result, the ACHFs with adjustable heteroatom doping have a broad application prospect in electrochemical energy storage.

中文翻译：

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液化木衍生自掺杂活性炭中空纤维的制备

通过熔融纺丝、半固化、碳化和蒸汽活化制备了来自液化木材的杂原子自掺杂活性炭中空纤维（ACHFs）。结果表明，具有 N 和 P 掺杂的 ACHF 表现出高比表面积（1896.6-2040.8 m 2 g -1 ）和总孔体积（1.02-1.058 cm 3 g -1 ）。还发现催化剂中的P和固化剂中的N对ACHFs孔结构的形成机制不同。当应用于超级电容器时，ACHF-N10P16 可以在 6 M KOH 电解质中以 1 A g -1 的电流密度提供 151 F g -1 的高比电容。此外，由于 N 和 P 掺杂，ACHFs 显示出赝电容和双层电容的协同优势。因此，