Performance of Stretchable Electrodes from Pyrolyzed Fruit Peels Properties with Nickel Nanoparticles Reinforcement for Flexible Electronics Applications

This study investigates the mechanical and electrical performance of stretchable electrodes fabricated from pyrolyzed banana peel and orange peel activated carbon (OPBLAC), blended with styrene-isoprene-styrene (SIS) copolymer, carbon black, and nickel nanoparticles (NiNPs). The electrodes were prepared with varying compositions of OPBLAC: SIS: Carbon black: NiNPs to evaluate their strain, strain retention, stress, and electrical conductivity. Results demonstrate that the incorporation of NiNPs significantly enhances the mechanical and electrical properties of the composite. The optimal composition (40:20:10:30) exhibited a stress of 2.2 MPa, strain of 220%, strain retention of 94%, and electrical conductivity of 4.0 S/cm. These findings highlight the potential of using sustainable fruit peel-derived activated carbon reinforced with NiNPs for high-performance stretchable electrodes in flexible electronics, offering a balance of mechanical durability and electrical performance