Electrochemical hydrogen peroxide sensor based on carbon supported Cu@Pt core-shell nanoparticles

• DOI: 10.1016/j.msec.2017.04.072
• Publication Date: 2017-04-14T15:16:35Z
• Authors: Wenjun Zhao; Jiayi Jin; Huimin Wu; Shengfu Wang; Chuanqi Fneg; Shuijin Yang; Yu Ding
• Keywords: Electrochemical gas sensor; Carbon fibers

The Cu@Pt/C nanocomposites have been synthesized via two-step reduction method. Electrochemical observations showed that the Cu@Pt/C had better electrocatalytic activity for the reduction of hydrogen peroxide than Pt/C, with a wide linear range between 0.50μM and 32.56mM, a high sensitivity of 351.3μAmM-1cm-2, and a low detection limit of 0.15μM (signal/noise=3). Furthermore, the sensor based on Cu@Pt/C has potential applications due to its excellent long-time stability, good reproducibility and acceptable selectivity.