LAUSR

The proper architecture of supporting electrode materials is the most promising strategy for improving the catalytic activity and chemical stability of the electrochemical sensors. Herein, we have successfully synthesized the 3D hierarchical flower-like cerium vanadate (CeVO4) nanostructure by a simple hydrothermal approach. A sequence of scanning electron microscopy and spectroscopic techniques is used to clearly confirm the successful construction of CeVO4 nanostructure. The electrocatalytic activity of these CeVO4 modified electrode for the electrochemical detection of clioquinol (CQ) was evaluated by cyclic voltammetry and differential pulse voltammetry methods. Benefitting from its unique 3D flower-like nanostructure, both of charge transfer rate and electronic conductivity were significantly improved, resulting in the significant enhancement in the electrochemical performance along with a wide dynamic linear range (0.02–215 µM), a ultra-low detection limit (0.004 µM), a low oxidation peak potential ...