本文以体相材料MAX(Ti₃AlC₂)为基底，采用氢氟酸刻蚀法得到二维多层状Ti₃C₂T_x-MXene，将一维聚吡咯纳米线(polypyrrole nanowires，PPy-NW)与二维多层状Ti₃C₂T_x-MXene相结合，成功地制备出Ti₃C₂T_x-MXene/PPy-NW复合电极材料. 并分别利用扫描电子显微镜(scanning electron microscope，SEM)、X-射线衍射(X-ray diffraction，XRD)、傅里叶变换红外光谱(fourier transform infrared spectroscopy，FTIR)及X射线光电子能谱 (X-ray photoelectron spectroscopy，XPS)对其进行了形貌和结构表征. 最后通过电化学测试表明，二维多层状Ti₃C₂T_x-MXene/PPy-NW复合电极材料在扫描速率为10 mV·s^-1时比电容可达374 F·g^-1，高于纯PPy-NW（304 F·g^-1），当扫描速率增加至200 mV·s^-1时，仍可保留原比电容值的72.4%，展现出良好的倍率性能. 而且在电流密度为5 A·g^-1下经过2000次的循环伏安实验，其电容保持率可达91.6%，具有良好的循环稳定性. 总之，二维多层状Ti₃C₂T_x-MXene和一维PPy-NW的复合有效地提升了电极材料的电容性能，在电化学能源储存方面有着巨大的应用前景.

In this paper, the two-dimensional multilayered Ti₃C₂T_x-MXene was obtained by hydrofluoric acid etching method on the bulk phase material MAX(Ti₃AlC₂) substrate. The two-dimensional multilayered Ti₃C₂T_x-MXene/PPy-NW composite electrode materials were successfully prepared by combining the one-dimensional polypyrrole nanowires (PPy-NW) with two-dimensional multilayered Ti₃C₂T_x-MXene. The morphologies and compositions of the synthetic materials were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Electrochemical tests showed that Ti₃C₂T_x-MXene/PPy-NW composite electrode material could reach 374 F·g^-1 at a scanning rate of 10 mV·s^-1, which is higher than pure PPy-NW (304 F·g^-1). When the scanning rate increased to 200 mV·s^-1, it could still retain 72.4 % of the original specific capacitance value, showing good multiplying performance. Finally, the Ti₃C₂T_x-MXene /PPy-NW composite electrode material still retained good cycling stability even at high current density of 5 A·g^-1 (91.6% capacitance retention after 2000 cycles). In summary, the composite of two-dimensional multilayered Ti₃C₂T_x-MXene and one-dimensional PPy-NW effectively improved the capacitance performance of electrode materials, and had great application prospect in electrochemical energy storage.