Heterogeneous equilibria at the glass electrode-solution interface

Mixed Adsorption Layers Formed at the Electrode – Solution Interface

Adsorption of anionic surfactant at the electrode–NaClO4 solution interface

ABSTRACT Adsorption of 1-decanesulfonic acid at the electrode-NaClO4 solution interface was determined by double-layer differential capacity measurements. At potentials less than -1,200 mV, the adsorption of the anionic surfactant on the electrode does not occur. Low concentrations of the anionic surfactant (below cmc) causes slight changes in the zero charge potential, Ez, and the surface tens...

Modelling the Transport and Kinetics of Electroenzymes at the Electrode/Solution Interface

The solution phase transport and direct electrode kinetics of electro-enzymes are described in terms of a simple model in which the steady state reaction/diffusion equation for enzyme is solved subject to physically realistic boundary conditions. Two physically realizable situations are described: the semi infinite and the membrane bounded case. Limiting expressions for the reaction flux are de...

Characterizing heterogeneous dynamics at hydrated electrode surfaces.

In models of Pt 111 and Pt 100 surfaces in water, motions of molecules in the first hydration layer are spatially and temporally correlated. To interpret these collective motions, we apply quantitative measures of dynamic heterogeneity that are standard tools for considering glassy systems. Specifically, we carry out an analysis in terms of mobility fields and distributions of persistence times...

Effects of space-charge at the conjugated polymer/electrode interface

Films of the polymer poly(4-dicyanomethylene-4H-cyclopenta[2,1-b:3,4-b’]dithiophene (PCDM) were electro-deposited onto indium tin oxide (ITO) coated glass substrates. The formation of a polymer was confirmed by the presence of an absorption band at ~900 nm (~1.4 eV) previously attributed to a * transition. Diodes formed by evaporating aluminium counterelectrodes onto the films displayed non-...