Direct synthesis of CeO₂ nanospindles on gold electrode by electrochemical method

Abstract

In the present study, we reported direct synthesis of CeO2 nanospindle on gold electrode by using cyclic voltammetry (C‐V) method. The method advantages are simple, low cost, room temperature, without using any templates. The synthesized nanospindles were characterized by Field Emission Scanning Electron Microscopy (FE– SEM), Energy Dispersive X‐ray Spectroscopy (EDS) and X‐ray diffraction (XRD). The propery characterization of the samples was studied by electrochemical impedance spectroscopy (EIS) and Photoluminescence spectroscopy (PL). It was found that these nanospindles are approximately 700 nm and diameter of about 100‐200 nm. Optimal parameters such as scan rate, scan cycle, and Ce3+ concentration were also investigated.

Electrodeposited Fabrication of CeO2 Branched-like Nanostructure Used for Nonenzymatic Glucose Biosensor

“…A saturated Ag/AgCl electrode was used as the reference electrode, and a platinum plate was employed as the counter electrode. The electrodeposition experiments were carried out in a solution containing 0.015 M Ce(NO 3 ) 3 , 0.01 M KCl, and 0.02 M CH 3 COONH 4 and a certain amount of CH 3 COOH using the cyclic voltammetry method at room temperature with a cyclic voltammetry range of −0.4-1.8 V. According to our previous study [30], a scanning rate of 400 mV/s was the optimal value for electrodeposition of CeO 2 onto a Au substrate electrode. Therefore, in this work, a scanning rate of 400 mV/s was used.…”