A new catalyst Ti doped CdO thin film for non-enzymatic hydrogen peroxide sensor application

•Ti doped CdO is firstly reported for electrochemical non-enzymatic H2O2 sensor applications.•Fabricated nanostructured thin films were directly exploited as working electrodes toward the detection of harmful H2O2 gas.•Ti: CdO film exhibits pronounced electrocatalytic activity for the reduction of H2O2 when compared to pure CdO.