Synthesis of Fe3O4@SnO2 core–shell nanorod film and its application as a thin-film supercapacitor electrode

Abstract

Considerable areal capacitance (mF cm(-2) level) and long cycling stability (2000 cycles, the best ever for Fe(3)O(4)-based electrodes) are demonstrated for the first time for Fe(3)O(4)@SnO(2) core-shell nanorod film, which is grown directly on a current collector substrate.