Polypyrrole (PPy) based MXene nanocomposite electrode was prepared by intercalating PPy into the layered Ti₃C₂T_x by a harmonious electrodeposition technique. The enhanced energy storage performance of Ti₃C₂-PPy is studied both experimentally and by using the first-principles method. The nanotubular flower-like morphology effectively prevents Ti₃C₂ stacking, resulting in enhanced interlamellar spacings and for fast and precise electrons/ions pathways. Ti₃C₂-PPy delivers excellent specific capacitance of 474 F g⁻¹ in 1 M H₂SO₄ at a current density of 1 A g⁻¹. The fabricated asymmetric supercapacitor establishes a gravimetric capacitance of 243 F g⁻¹ with a remarkable rate performance of 98 % across 10000 cycles. To realize better energy storage and safety standards for commercial applications, the quasi-solid-state supercapacitors were fabricated with gel polymer electrolyte. They demonstrated the key performance parameters of high energy density (54.4 Wh Kg⁻¹) and power density (181.5 W kg⁻¹) at an enhanced operating potential window (∼2V). This is the widest potential window reported to date for MXene-based polymeric supercapacitors. The calculated quantum capacitance value follows the experimental trend with a high value of 2104 µFcm⁻² at 1.7 V. This asymmetric supercapacitor can power LEDs and establishes its potential to encounter practical applications in energy storage solutions.

 通过和谐电沉积技术将PPy嵌入层状Ti ₃ C ₂ T _{x中，制备了基于聚吡咯（PPy）的MXene纳米复合电极。Ti 3} C ₂ -PPy增强的储能性能通过实验和第一性原理方法进行了研究。纳米管状花状形态有效地防止了 Ti ₃ C ₂ 的堆积，从而提高了层间间距并实现了快速和精确的电子/离子路径。Ti ₃ C ₂ -PPy 在 1 MH ₂ SO _{4中提供 474 F g} ^{-1的出色比电容} 在 1 A g ^-1的电流密度下。制造的非对称超级电容器建立了 243 F g ^-1的重量电容，在 10000 次循环中具有 98% 的出色倍率性能。为了实现更好的商业应用储能和安全标准，准固态超级电容器采用凝胶聚合物电解质制造。他们展示了在增强的工作电位窗口（~2V）下高能量密度（54.4 Wh Kg ^-1）和功率密度（181.5 W kg ^{-1 ）的关键性能参数。}这是迄今为止报道的基于 MXene 的聚合物超级电容器最广泛的潜在窗口。计算出的量子电容值遵循实验趋势，具有 2104 µFcm ^-2的高值电压为 1.7 V。这种非对称超级电容器可为 LED 供电，并确定其在储能解决方案中的实际应用潜力。