Theoretical voltammetric response of electrodes coated by solid polymer electrolyte membranes

Gómez–Marín, Ana M.; Hernández-Ortíz, Juan P.

doi:10.1016/j.aca.2014.07.001

Cited by 1 publication

(3 citation statements)

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“…29,60 The effect of CO/OH diffusion in the LH scheme, including lateral interactions, will be discussed in detail elsewhere. 48…”

Section: The Reaction Model and The Lh−mfa Formalismmentioning

confidence: 99%

“…In order to improve the model, Dynamic MC simulations for the same LH scheme, including lateral interactions and taking into account the effect of CO ads and/or OH ads diffusion will be discussed elsewhere. 48 Nevertheless, it is important to keep in mind that the model illustrated here is quite simply and it is far away from describing real experiments, which include many more phenomena. The time at which the maximum current is observed, t max , as a function of E f is shown in Figure 10A for different k 2 values and ∈ CO−CO < 0.…”

Section: System Including Lateral Interactionsmentioning

confidence: 99%

“…In addition, this MFA model will serve as the foundation of a Dynamic MC model that will be published elsewhere. 48 The manuscript is organized as follows: in section 2, the reaction kinetic model is described as well as the system equations based on the MFA, also called in electrochemistry as the Frumkin approximation. 33,49 In section 3, results start with the non-interacting model, continuing to systems with attractive and repulsive interactions.…”

Section: Introductionmentioning

confidence: 99%

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Mean Field Approximation of Langmuir–Hinshelwood CO–Surface Reactions Considering Lateral Interactions

Gómez–Marín

Hernández-Ortíz

2013

J. Phys. Chem. C

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The mean field approximation to model the CO electrocatalytic oxidation on metal surfaces, including attractive and repulsive ef fective lateral interactions between the species, is employed. Adsorbed CO reacts with adsorbed OH from water dissociation through a Langmuir−Hinshelwood mechanism. Simulated results suggest alternative explanations to experimental observations during CO stripping oxidation on different electrodes by potential step chronoamperometry or voltammetry. Even though the model ignores higher order interactions, such as three-body or long-ranged interactions, the results extend the conceptual framework for transient kinetics and stripping voltammograms for CO oxidation on metallic surfaces or any other electrochemical Langmuir− Hinshelwood reaction. In spite of the high level of simplicity, the model is a promising tool for the understanding of the electrocatalytic activity and results were qualitatively compared with experimental results.

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“…29,60 The effect of CO/OH diffusion in the LH scheme, including lateral interactions, will be discussed in detail elsewhere. 48…”

Section: The Reaction Model and The Lh−mfa Formalismmentioning

confidence: 99%

Section: System Including Lateral Interactionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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