Effect of Aniline and Ammonium Persulfate Concentration on the Structural and Electrical Properties of Polyaniline‐Decorated Graphene Oxide Nanocomposites

ABSTRACT Polyaniline‐decorated graphene oxide (PGO) nanocomposites exhibit enhanced electrical, mechanical, and thermal properties, making them suitable for energy storage, sensors, and flexible electronics. This study explores the impact of aniline and ammonium persulfate as key reagents on PGO's structural, chemical, and functional properties, hypothesizing that polyaniline (PANI) incorporation enhances conductivity and stability. PANI was synthesized onto graphene oxide (GO) via in situ polymerization, and the samples were characterized using FTIR, FT‐NMR, XRD, electrical conductivity measurements, and DLS. Results indicated significant physicochemical modifications, including increased crystallinity (XRD) and a visible color shift to dark greenish. FTIR and FT‐NMR confirmed successful functionalization. Electrical conductivity was notably improved, with sample S3 achieving up to . Increasing PANI loadings enhanced electron transport pathways, though optimal levels were required to prevent aggregation and maximize conductivity. These findings highlight the potential of PANI‐decorated GO for advanced applications in energy, electronics, and coatings, while addressing challenges in achieving uniform decoration and synthesis scalability.