Electrospun polyetherimide nanofibers with reduced graphene oxide-zeolitic imidazolate framework for conductivity improvement

Abstract Reduced graphene oxide (rGO) combined with zeolitic imidazolate framework (ZIF), i.e., rGO-ZIF incorporated polyetherimide (PEI) electrospun nanofiber, was produced using the electrospinning technique. The nanofibers had high porosity enhanced conductivity. ionic conductivity, porosity, morphology, and diameter of nanofiber were optimized by manipulating weight percentage PEI in solution. Morphology, contact angle analyses revealed that 30 wt% 0.3 can produce without beads 136.3 ± 35 nm mean around 92.3%. Furthermore, electrochemical impedance spectroscopy (EIS) analysis addition rGO-ZIF, charge transfer resistance decreased, conductivity increased to 5.23 × 10 –4 S/cm, nearly 200 times higher than pure nanofibers. excellent low resistance, rGO-ZIF/PEI-based composite make them suitable for sensing electrode applications.