preparation of polyaniline/vanadium oxide hydrogel for high performance binder-free electrodes

Abstract: in recent years, there has been a tremendous increase in demand for high-performance flexible and portable electronics with great power/energy density. researchers in energy storage, particularly supercapacitors and batteries, are currently interested in flexible technologies. a ternary nanostructured polyaniline/vanadium oxide decorated graphene composite hydrogel was developed as a promising electrode material for flexible supercapacitors. in a 1 m h2so4, the ternary composite hydrogel on carbon cloth has a high specific capacitance of 982.8 fg-1 when the current density is 2.7 ag-1. because of the well-designed cross-linked hydrogel structure, high surface area, and synergistic effects among all three components, ternary composites hydrogel shows superior electrochemical performance. next-generation flexible supercapacitors can benefit greatly from this remarkable performance.