A Bowknot-like RuO2 quantum dots@V2O5 cathode with largely improved electrochemical performance†
Abstract
Bowknot-like RuO2 quantum dots@V2O5 nanomaterials have been synthesized by a facile hydrothermal method followed by annealing treatment, which exhibit largely enhanced electrochemical performance. Especially, the RuO2 quantum dots@V2O5 cathode delivers 160 mA h g−1 at 1000 mA g−1 after 100 cycles, which is much higher than 86 mA h g−1 of the pure V2O5 cathode.