Influence of F-PbO2 Doping on the Microstructure, Surface Morphology and Electrochemical Properties of the Electrode for Chlorates Production Cell

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2017 by IJETT Journal
Volume-50 Number-4
Year of Publication : 2017
Authors : Adam Suleiman Khamiss, Babiker Abdalla Karama, Gurashi Abdullah Gasmelseed
DOI :  10.14445/22315381/IJETT-V50P233


Adam Suleiman Khamiss, Babiker Abdalla Karama, Gurashi Abdullah Gasmelseed "Influence of F-PbO2 Doping on the Microstructure, Surface Morphology and Electrochemical Properties of the Electrode for Chlorates Production Cell", International Journal of Engineering Trends and Technology (IJETT), V50(4),203-210 August 2017. ISSN:2231-5381. published by seventh sense research group

Electrode fabricated from graphite felts as basic substrate was doped by lead dioxide (PbO2) and fluorine F- ion through the potentiostatic anode co-deposition method. The fluorine content on the layer controlled and optimized by adjusting different co deposition potential. The influence of fluorine F- ion on the composition, surface morphology and electrochemical properties of the lead dioxide electrode was chracterized by X-ray diffraction (XRD), Scanning Electron Microscope (SEM), Energy Dispersive X-ray detector (EDX), X-ray Photoelectron Spectroscopy (XPS). Electrochemical experiments of Linear Sweep Voltammetry (LSV), Cyclic Voltammetry (CV) and durability was executed by electrochemical workstation which showed good activity and service life durability. Oxidizing electrolyte of sodium chlorate as one feild of application, showed the electrode with optimized content of F- has better performance than that without doped at prefered condition ranged to PH 6.5,temperture 550C and 4V constant potential. This investigation can contribute to the improvement of electrochemical cells that may use this material as an electrode. Choicing practical graphite substrate added value to improvement of the electric conductivity. The surface modified of the electrode enlarged it`s area from limited smoothing to octahedral surface due to the shape obtained from the doping.

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lead dioxide electrode, potentiostatic method, electrochemical properties, oxygen evolution potential.