Efficient coupling of MnO/TiN on carbon cloth positive electrode and FeO/TiN on carbon cloth negative electrode for flexible ultra-fast hybrid supercapacitors.

Recent research and development of energy storage devices has focused on new electrode materials because of the critical effects on the electrochemical properties of supercapacitors. In particular, MnO and FeO have drawn extensive attention because of their low cost, high theoretical specific capacity, environmental friendliness, and natural abundance. In this study, MnO ultrathin nanosheet arrays and FeO nanoparticles are fabricated on TiN nanowires to produce binder-free core-shell positive and negative electrodes for a flexible and ultra-fast hybrid supercapacitor.