Abstract Mono- and co-doped MXene(Ti3C2Tx)/poly(3,4-ethylenedioxythiophene)(PEDOT) composites (MPTs) are prepared by in situ chemical method. The obtained co-doped-MPTs electrode materials with lamellar composite microstructure, which could facilitate the transmission of electrons and ions, provide improved electrochemical performances. The potential window of the doped MPTs can be enlarged to 1.8 V. Compared with 1,5-naphathalene disulfonic acid/H3PMo12O40 co-doped MPTs, 1,5-naphathalene disulfonic acid/anthraquinone-2-sulfonate (AQS) co-doped MPTs can provide higher specific capacitance of 323 F/g (more than two times as much as that of pristine MXene and PEDOT) and ideal capacitive behavior, which could be attributed to the co-doping effect as well as the Faradaic reaction of AQS.

中文翻译：

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掺杂MXene/聚(3,4-乙撑二氧噻吩)复合材料的制备及电化学性能

摘要 采用原位化学方法制备了单掺杂和共掺杂的MXene(Ti3C2Tx)/聚(3,4-亚乙基二氧噻吩)(PEDOT)复合材料(MPTs)。获得的共掺杂-MPTs电极材料具有层状复合微结构，可以促进电子和离子的传输，提供更好的电化学性能。掺杂 MPTs 的电位窗口可以扩大到 1.8 V。 与 1,5-萘二磺酸/H3PMo12O40 共掺杂 MPTs 相比，1,5-萘二磺酸/蒽醌-2-磺酸盐 (AQS) 共掺杂 MPTs可以提供更高的 323 F/g 比电容（是原始 MXene 和 PEDOT 的两倍多）和理想的电容行为，这可能归因于共掺杂效应以及 AQS 的法拉第反应。