Reply to “Remarks on the simulation of Cl electrosorption on Ag(1 0 0) reported in Electrochimica Acta 50 (2005) 5518”

We reply to the remarks by Láng and Horányi [G.G. Láng, G. Horányi, Electrochim. Acta (2006), doi:10.1016/j.electacta.2006.07.009] on the meaning of the notion of “electrosorption valency” used by Abou Hamad et al. [I. Abou Hamad, S.J. Mitchell, Th. Wandlowski, P.A. Rikvold, G. Brown, Electrochim. Acta 50 (2005) 5518]. It is concluded that, contrary to the assertion of Láng and Horányi, the magnitude of the current in the external circuit upon adsorption of an ion of charge ze   with partial charge transfer is indeed given by an electrosorption valency γγ such that |γe|<|ze||γe|<|ze|. We believe the conclusion of Láng and Horányi to the contrary is the result of an excessively severe charge-neutrality requirement.