Production of electrolyzed water for home-use based on electrodeposited macroporous platinum
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Although electrolyzed water is a efficient disinfectant to eradicate microorganisms, it is rarely used for domestic applications. Among the various types of electrolyzed water, both slightly acidic electrolyzed water and neutral electrolyzed water are weakly acidic and contain hypochlorous acid (HOCl) which is a strong anti-bacterial agent. To avoid side effects, such as stimulation of skin, the free chlorine concentration must be < 5 mg/L. Considering that the free chlorine concentration of tap water is 4 mg/L, the range from 3 to 5 mg/L is very stable for home use. This is generally referred to as low-level hypochlorous acid fluid. Hence, we developed an electrolysis device that can directly produce low-level hypochlorous fluid. To reduce the production time, we designed a macroporous electrode with a roughness of macroscopic dimensions, which can enhance a sluggish chemical reaction. Using this principle, the macroporous electrode has shown potential applicability and the efficient bactericidal activity.
KeywordsElectrolysis device Electrolyzed water disinfection Hypochlorous acid Macroporous Pt (platinum) films
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