Graphene and silver nanowires (AgNWs) are promising materials for advanced electronic applications due to their exceptional electrical, thermal, and mechanical properties. However, challenges such as poor dispersion stability of graphene and AgNWs and oxidation susceptibility of AgNWs often lead to aggregation and performance degradation.
To address these challenges, we developed a multifunctional polymer dispersant incorporating styrene sulfonate, disulfide-based methacrylate, and potential urethane-forming protected isocyanate groups. The newly developed dispersant facilitated the stable aqueous co-dispersion of graphene and AgNWs while improving the oxidation resistance and conductivity. Structural analysis by NMR and IR confirmed the successful synthesis of the polymer, while TEM imaging revealed graphene-coated AgNWs for enhanced oxidation resistance and improved electrical performance.
This novel nanocomposite exhibits significant potential for advanced electrodes and sensors, overcoming the challenges in graphene/AgNW systems. The proposed approach paves the way for the development of stable, high-performance materials for next-generation electronic devices.