Ammonia Oxidation on the Barium Doped Nano Structured PbO Electrode: An Electrochemical Preparation and Application

Abstract

In the present investigation, we report a novel nano structured Ba/PbO 2 prepared by electrochemical deposition method has been employed for the effective oxidation of ammonia in aqueous solutions. The electrode deposition was achieved in the boric acid bath solution that yielded a smooth deposition of PbO 2 without poisoning the supporting electrolyte. The surface characterization of the deposited layer was done using Scanning Electron Microscope (SEM), and observed that cauliflower like morphology of undoped PbO 2 was completely changed to a sharp edge like flower shape morphology due to the addition of Barium ions. The XRD characterization showed that nano crystallinity of PbO 2 gets altered with the concentration of the Barium (Ba) ion dopant. Cyclic voltammetric investigation indicated that Ba 10-5 /PbO 2 electrode effectively oxidized Ammonia (NH 3 ) in alkaline solution, as confirmed through FT-IR spectral analyses. The prepared Ba containing electrode layer is quite promising for the oxidization of Ammonia for various industrial applications.

Anodizing Pb Electrode for Synthesis of β-PbO2 Nanoparticles: Optimization of Electrochemical Parameters

“…Also, several procedures have been documented for synthesis of PbO 2 anode, including chemical, 28 electrochemical 29 and thermal 24 decomposition. Electrochemical techniques are composed of constant direct current (DC) electrodeposition, 30 pulsed DC electrodeposition, 14 cyclic voltammetry 22,31 and constant potential electrodeposition. 32 One of the electrodeposition methods is the pulsed DC electrodeposition.…”