表面掺杂改性生物质活性炭在超级电容器中的应用

Application of surface-doped modified activated carbon in supercapacitors

活性炭作为超级电容器电极材料,具有许多优点,但也存在能量密度低、比电容不足的缺点。介绍了双电层电容器和赝电容电容器的储能原理以及生物质活性炭的制备工艺,综述了近年来表面掺杂N、S、O、P和金属氧化物改性生物质活性炭电极材料在超级电容器中的应用,指出了存在的问题及未来研究方向。

Activated carbon,as an electrode material for supercapacitors,possesses many advantages,but it also has the drawbacks of low energy density and insufficient specific capacitance.We expounded on the storage principles of double-layer capacitors and pseudocapacitors,along with the preparation process of biomass-derived activated carbon.A comprehensive review of the recent advancements in surface-doped N,S,O,P,and metal oxide-modified activated carbon electrode materials for supercapacitors was presented,shedding light on the prevailing challenges and potential avenues for future research.