Defects engineering of Fe2O3@Sn2O3 nanosheet arrays for high-performance hybrid supercapacitor

Developing new-type electrode materials with high surface area, stable microstructure and high performance is important to global sustainability. Herein, we successfully fabricate an oxygen-deficient Fe2O3@Sn2O3 nanocomposite composed of Fe2O3 and Sn2O3 nanosheet-arrays on Ni foam. Benefiting from this kind of binder-free nanosheet-arrays microstructure and the oxygen vacancy, the electrode oxygen-deficient Fe2O3@Sn2O3 (VO-Fe2O3@Sn2O3)...