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À propos de : Chronoamperometric Study of the Films Formed by Saltsof Heptyl Viologen Cation Radical on Mercury: Desorption−Nucleation and Reorientation−NucleationMechanisms        

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  • Chronoamperometric Study of the Films Formed by Saltsof Heptyl Viologen Cation Radical on Mercury: Desorption−Nucleation and Reorientation−NucleationMechanisms
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  • The formation of condensed phases by salts of heptyl viologen cation radical on mercury electrode inaqueous media under potentiostatic conditions is explained in light of a new mathematical model basedon a desorption−nucleation mechanism. This initially assumes the nucleation process to be governed bythe desorption of molecules previously adsorbed on the electrode surface. The potential subsequentincorporation of adsorbed molecules into the condensed 2D phase via surface reorientation (a reorientation−nucleation mechanism) is considered. The proposed model was successfully applied to the 2D nucleationof heptyl viologen in the presence of both strongly (bromide) and weakly (sulfate) adsorbed anions on amercury electrode surface.
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