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2Â¥: Originally posted by Jackcd12 at 2018-11-22 21:28:57
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ÁíÍâÎÒ½ñÌì¿´µ½Ò»ÆªÎÄÏ×ÓÐЩ²»¶®£¬ÄúÄܰïÎÒ¿´¿´Âð£ºFor polarization experiments carried out in aeratedconditions, a background cathodic current due to oxygen reduction will always be present at potentials less than equilibrium potential for this reaction which lies between ¡ª 0.96 and 0.54 V (SCE). However, where the anodic currents are comparable to the background cathodic current, the measured anodic current is too small by a constant quantity (i.e. the oxygen reduction current). It is for this reason that many electrochemical tests are carried out under de-aerated conditions. Where de-aeration is not practic- able, the compensation for the presence of the oxygen reduction current is carried out to extract the correct anodic currents.
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