SEARCH Articles Figures Tables Effect of catalyst potential and work function on the apparent activation energy, E, and on the logarithm of the preexponential factor r rfi is the open-circuit preexponential factor and T0, T are the two isokinetic points of C2H6 oxidation on Pt YSZ for positive and negative potentials respectively.27 Reprinted with permission from Academic Press. [Publishers Imprint] [Publishers Imprint]