Polyaniline-multiwalled carbon nanotube (PANI-MWCNT) composite synthesized through chemical polymerization is investigated as a possible electrode material for supercapacitor as well as an electro-catalyst for hydrogen evolution reaction (HER) in acidic medium. UV–Vis spectroscopy, FTIR spectroscopy and field emission scanning electron microscopy (FESEM) have been used to characterize the electrode material. The binder-free electrodes were prepared and they exhibit a specific capacitance of 540.29 F g⁻¹ at a scan rate of 2 mV s⁻¹ in 1 M H₂SO₄ electrolyte. The material exhibits excellent pseudocapacitive behaviour due to the presence of PANI with long-term cyclic stability of 87.4% retention after 5000 cycles. PANI-MWCNT composite also shows good HER activity, with overpotential of −395 mV.

研究了通过化学聚合反应合成的聚苯胺-多壁碳纳米管（PANI-MWCNT）复合材料，作为超级电容器的一种可能的电极材料，以及在酸性介质中用于氢释放反应（HER）的电催化剂。UV-Vis光谱，FTIR光谱和场发射扫描电子显微镜（FESEM）已用于表征电极材料。制备了无粘合剂电极，它们在1 MH ₂ SO ₄中的扫描速率为2 mV s ^-1时显示的比电容为540.29 F g ^-1电解质。由于PANI的存在，该材料表现出出色的伪电容性能，在5000次循环后，其长期循环稳定性为87.4％的保留率。PANI-MWCNT复合材料还显示出良好的HER活性，超电势为-395 mV。