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http://dx.doi.org/10.15681/KSWE.2017.33.1.34

Fabrication of Ti/IrO2/Ta2O5 Electrode with High Electrochemical Activity and Long Lifetime  

Kim, Da-eun (Graduate School of Energy and Environment, Seoul National University of Technology & Science)
Yoo, Jaemin (Graduate School of Energy and Environment, Seoul National University of Technology & Science)
Lee, Yongho (Graduate School of Energy and Environment, Seoul National University of Technology & Science)
Pak, Daewon (Graduate School of Energy and Environment, Seoul National University of Technology & Science)
Publication Information
Journal of Korean Society on Water Environment / v.33, no.1, 2017 , pp. 34-39 More about this Journal
Abstract
Under a corrosive environment, electrodes that are applied in the water-treatment system need not only very high electrochemical activity for fast reactions, but also high durability for cost saving. Therefore, the fabrication condition of iridium electrodes was examined to produce a more durable iridium electrode in this study. Tantalum was selected as a binder to enhance the durability of the iridium electrode. Investigation of the weight ratio between the catalyst and the binder to improve electrochemical activity was performed. Also, to compare the effect of the different coating amounts of the catalyst, the results of CV (Cyclic Voltammetry) and EIS (Electrochemical Impedance Spectroscopy) were discussed. Furthermore, an ALT(Accelerated Lifetime Test) was designed and applied to the electrodes to determine the conditions for highly durable electrode fabrication.
Keywords
Accelerated lifetime test; Catalytic electrode; Cyclic Voltammetry; Electrochemical characterization; Electrochemical Impedance Spectroscopy;
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