Adsorption Isotherm for Atomic Hydrogen

Referring to Eq. (2), this means that 6 and are also related to each other by a semilogarithmic relation. It is hence reasonable to write, 

It is possible to evaluate U from direct analysis of the potential sweep curve/ Assuming reversibility of the hydrogen wave during the potential sweep, we may rewrite Eq. (5) as 

The shape of the hydrogen wave on Pt is not very reproducible in detail, depending on the conditions of preparation of the electrode, on its history, e.g., anodization, on the kind of anion present in the solution, etc. However, on a given electrode in a given solution, the profile is exactly reproducible if impurities are absent. It seems almost established that differences of profiles are caused by coexistence of various crystallographic planes on the electrode surface (see below. Section 2.3). 

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