The development of effi cient electrode materials is crucial for high-performance energy storage devices. In this study, a

polyaniline/metal–organic framework (PANI/Mn-BTC) nanocomposite was synthesized and structurally characterized to

confi rm its successful formation. Metal–organic frameworks (MOFs) have recently emerged as promising candidates for

electrode fabrication due to their well-defi ned crystalline structures, accessible metal sites, and high specifi c surface areas .

Polyaniline (PANI), known for its low cost, multiple redox sites, and facile synthesis, has also attracted considerable attention

for energy storage applications. The integration of these two materials in the PANI/Mn-BTC nanocomposite off ers synergistic

advantages that enhance electrochemical performance. Electrochemical evaluations demonstrated improved properties of the

nanocomposite, indicating its potential as an eff ective electrode material for supercapacitors. The nanocomposite exhibited

a high specifi c capacitance of 894 F/g at a current density of 1 A/g, along with excellent cycling stability, retaining 98% of

its capacitance after 1000 charge–discharge cycles. Furthermore, electrochemical impedance spectroscopy (EIS) analysis

revealed a low charge transfer resistance of the PANI/Mn-BTC electrode, which is attributed to the synergistic eff ects between

the components and the large surface area of the nanocomposite .