EFFECT OF PREPARATION FACTORS ON THE ELECTROCHEMICAL PROPERTIES OF RuO2-TiO2 ELECTRODE FOR CHLORINE EVOLUTION REACTION
Publish place: 1st International and 6th Joint Conference of Iranian Society of Metallurgical Engineers and the scientific community of Casting
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IMES06_646
تاریخ نمایه سازی: 8 بهمن 1391
Abstract:
60RuO2-40TiO2 coating was deposited on titanium substrate by the thermal decomposition of chloride solution. Electro catalytic activity of the coating for chlorine evolution was evaluated by Taguchi method. The effect of preparing parameters like drying temperature, heat treatment temperature and heat treatment time on exchange current density (j0) was investigated by orthogonal arrays. Coated anodes were studied by Fieldemission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD). Chlorine evolution was studied in 5 M NaCl solution by potentio dynamic current potential curves. Analysis of variance (ANOVA) showed that the heat treatment temperature has the most significant effect on electro catalytic activity of the coating. Increasein heat treatment temperature affects the exchange current density by changing the active {101} crystallographic faces. Improvement in electro catalytic activity can be achieved with high drying temperature as a result of more surface area in cracked coating morphology
Authors
Farhad Moradi
School of Metallurgy and Materials Engineering, University College of Engineering, University of Tehran
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