Effective hydrazine electrochemical sensors based on porous CuO nanobelts supported on Cu substrate

Abstract

Hydrazine sensors, especially hydrazine electrochemical sensors, have been widely studied due to their portability and rapid and high sensitivity. Recently, however, the development of many hydrazine electrochemical sensors has been limited because the modifier on the electrodes tends to fall off easily during surface modification. In the present work, we designed a porous CuO nanobelt on a Cu rod as a composite electrode to detect hydrazine, which exhibited ultrahigh sensitivity of 41.17 mA μM -1 cm -2 and very low detection limit of 0.1 μM, and they especially avoided the possibility of the inconvenient modifying process and falling off. All the results indicated that these composite electrodes have a good potential application in the detection of hydrazine.