Role of electrolyte concentration on reversible Al3+ ion intercalation in graphene mediated anatase Titanium dioxide.

The electrochemistry of Al3+ ion in aqueous electrolytes is an interesting field of study. In this work, we have explored the feasibility of Al3+ ion insertion and extraction in graphene doped titanium dioxide (TiO2) microspheres through cyclic voltammetry and galvanostatic charge/discharge experiments. We present a one-step hydrothermal synthesis technique for producing spherical shape Graphene-TiO2. Our findings show that the kinetics of Al3+ ion insertion and extraction are significantly influenced by the concentration of aqueous electrolyte.