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http://dx.doi.org/10.5322/JESI.2018.27.6.467

A Basic Study on Accelerated Life Test Method and Device of DSA (Dimensionally Stable Anode) Electrode  

Kim, Dong-Seog (Department of Environmental Science, Catholic University of Daegu)
Park, Young-Seek (Division of Creative Integrater General Studies, Daegu University)
Publication Information
Journal of Environmental Science International / v.27, no.6, 2018 , pp. 467-475 More about this Journal
Abstract
The lifetime of the electrode is one of the most important factors on the stability of the electrode. Since the lifetime of the DSA (Dimensionally stable anode) electrode is long, an accelerated lifetime test is required to reduce the test time. Beacuse there is no basis or standard method for accelerated lifetime testing, many researchers use different methods. Therefore, there is a need for basis and methods for accelerated lifetime testing that other researchers can follow. We designed a reactor system for accelerated lifetime testing and planned specific methods. Reactor system was circulating batch reactor. Reactor volume and cooling water tank were 12.5 L and 100 L, respectively. Electrode size was $2cm{\times}3cm$ (real electrolysis area, $5cm^2$). In order to maintain the harsh conditions, accelerated lifetime test was carried out in a high current density ($0.6A/cm^2$) and low electrolyte concentration (NaCl, 0.068 mol/L). Maintaining a constant temperature was an important operation parameter for exact accelerated lifetime test. As the accelerated lifetime test progressed, the active component of electrode surface was consumed and desorption occurred. At the point of 5 V rise, corrosion of the surface of the base material(titanium) also started.
Keywords
Dimensionally stable anode; Accelerated lifetime test; Electrolysis; Stability; Temperature preserve;
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Times Cited By KSCI : 1  (Citation Analysis)
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