What Is The Optimal Ratio Of Graphene Oxide To Polyaniline In A Composite Electrode Material To Achieve A Synergistic Enhancement Of Capacitive And Pseudocapacitive Contributions, While Maintaining A Stable Electrochemical Performance Over 10,000 Charge-discharge Cycles In A 1 M H2SO4 Electrolyte?

The optimal ratio of graphene oxide (GO) to polyaniline (PANI) in a composite electrode material for enhancing both capacitive and pseudocapacitive contributions, while maintaining stability over 10,000 charge-discharge cycles in a 1 M H2SO4 electrolyte, is around 1:1. This ratio effectively balances the high surface area and conductivity of GO with the pseudocapacitive properties of PANI.

A 1:1 ratio allows both materials to contribute synergistically, providing good capacitive performance from GO and significant pseudocapacitance from PANI. Additionally, this balance helps maintain structural integrity and stability, countering potential degradation of PANI in acidic conditions. Thus, the recommended ratio is typically between 1:1 and 1:0.8 (GO:PANI), ensuring enhanced performance and durability.