Defining the transfer coefficient in electrochemistry: An assessment (IUPAC Technical Report)

Short summary

This IUPAC technical report redefines the transfer coefficient (α) in electrochemistry to be independent of mechanistic assumptions, proposing αc = –(RT/F)(d ln|jc|/dE) and αa = (RT/F)(d ln ja/dE). The current definitions are shown to apply only to single-electron transfer elementary steps, which are rare, and their uncritical application leads to erroneous mechanistic interpretations.

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