The Preparation of Carbon NanotubeMnO2 Composite Fiber and Its Application to Flexible Micro-Supercapacitor

Abstract EN

In recent years, flexible electronic devices pursued for potential applications.

The design and the fabrication of a novel flexible nanoarchitecture by coating electrical conductive MWCNT fiber with ultrathin films of MnO2 to achieve high specific capacitance, for micro-supercapacitors electrode applications, are demonstrated here.

The MWCNT/MnO2 composite fiber electrode was prepared by the electrochemical deposition which was carried out through using two different methods: cyclic voltammetry and potentiostatic methods.

The cyclic voltammetry method can get “crumpled paper ball” morphology MnO2 which has bigger specific capacitances than that achieved by potentiostatic method.

The flexible micro-supercapacitor was fabricated by twisting two aligned MWCNT fibers and showed an area specific capacitance of 2.43 mF/cm2.

The flexible micro-supercapacitors also enable promising applications in various fields.