Electrochemical Characterizations of the Reducibility and Persistency of Electrolyzed Reduced Water Produced from Purified Tap Water

摘要

We use tap water(TW) electrolysis to produce an alkaline and reducible aqueous solution known aselectrolyzed reduced water (ERW). To explain the variations of physicochemical properties, weinvestigated the concentration change of hydrogen gases and hydroxide ions generated in cathodicelectrolysis and dissolved in electrolyzed reduced water. Alkalinity and alkaline persistency against thewaiting time of the prepared ERW were investigated as a pH measurement and electrochemicalanalysis after standing for 140 hrs. The higher reducibility of as-prepared ERW was evaluated byoxidation reduction potential (ORP) values and analyzed by cyclic voltammetry electrochemically; theavailable reducibility period of ERW was investigated using ORP measurements and electrochemicalanalysis after being left for 140 hrs. Changes in cyclic voltammograms and the square wavevoltammograms were used for redox characterizations and the hydrogen detection of ERW as anelectrochemical method. A quantitative measurement of reducibility for ERW was performed usinggalvanostatic oxidation and 0.027 C was obtained as an electrochemical reducible charge amount.