Utilization of Coinage Metals as an Efficient Dopant Protocol for Enhancing Asymmetric Supercapacitors and Oxygen Evolution Reactions

ABSTRACT Doped polyaniline (PANI) was synthesized using low concentrations of Ag and Cu coinage metals in order to evaluate their impact on energy conversion and storage performances. During the preparation of PANI, a chemical oxidation polymerization process was followed by concurrent doping with Ag and Cu. The nanoparticles were found to have typical orientations when examined by scanning electron microscopy (SEM). X‐ray diffraction (XRD) was used to examine the crystal structure of the synthesized doped PANI materials, which confirmed their crystalline nature. Ag‐Cu‐doped PANI samples demonstrated a more pronounced reduction in optical band gap as compared to other doped samples. Based on Fourier transform…