Fig. 9

(a) Cyclic performance of CuFe2O4 at different concentrations of Eu with respective Coulombic Efficiency, (b) Rate performance of CuFe2O4 nanorod to varying concentrations of Eu at varied current densities.

(a) Cyclic performance of CuFe2O4 at different concentrations of Eu with respective Coulombic Efficiency, (b) Rate performance of CuFe2O4 nanorod to varying concentrations of Eu at varied current densities.