Author Correction: Insight on Tafel slopes from a microkinetic analysis of aqueous electrocatalysis for energy conversion

Correction to: Scientific Reports 10.1038/srep13801, published online 08 September 2015

In this Article, the authors did not originally include an assumption justifying why the activity of species, a_i, (dimensionless) is used to describe the rates of the reactions. This is because these terms included standard concentration c⁰ (which is 1 M).

Therefore, in the Results and Discussion,

“The constants include Faraday’s constant, F = 96500 C mol⁻¹, the gas constant, R = 8.314 J mol⁻¹ K⁻¹, temperature T, the electron transfer coefficient, α = 0.5, and the surface area of the electrode, A.”

should read:

“The constants include Faraday’s constant, F = 96500 C mol⁻¹, the gas constant, R = 8.314 J mol⁻¹ K⁻¹, temperature T, the electron transfer coefficient, α = 0.5, and the surface area of the electrode, A. The activity of the species i is given by a_i = γ_ic_i/c°, where γ_i is the mean activity coefficient, c_i is the concentration, and c° is the standard concentration. Since the standard concentration is 1 M, the effective concentration can be simplified into a_ic° = a_i and this is used hereafter.”

This change does not affect conclusions of the Article.