Electrosorption of Br and Cl on Ag(1 0 0): experiments and computer simulations

Hamad, Ibrahim Abou; Wandlowski, Th.; Brown, G.; Rikvold, Per Arne

doi:10.1016/s0022-0728(03)00178-5

Cited by 35 publications

(59 citation statements)

References 22 publications

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“…These accepted fits are summarized in Table 2. Notice in Table 2 that for the accepted global minimum of model (iii), and for both mean-field-enhanced and non-meanfield-enhanced methods, the values of γ 0 and γ 1 are reasonably close to the ones calculated from the experimental data [3] using the method of Ref. [22].…”

Section: Resultssupporting

confidence: 60%

“…While model (ii) is expected to fit the Ref. [3,22] values of γ, model (iii) also predicts a mean value of γ close to, but slightly more negative than, the mean of the values of γ from Ref. [3,22].…”

Section: Resultsmentioning

confidence: 83%

“…We have previously shown [3] that for Cl/Ag(100), the electrosorption valency γ depends on the coverage θ, which is defined as…”

Section: Lateral Interaction Energiesmentioning

confidence: 99%

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Cl electrosorption on Ag(1 0 0): Lateral interactions and electrosorption valency from comparison of Monte Carlo simulations with chronocoulometry experiments

Hamad

Mitchell

Wandlowski³

et al. 2005

Electrochimica Acta

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We present Monte Carlo Simulations using an equilibrium latticegas model for the electrosorption of Cl on Ag(100) single-crystal surfaces. Fitting the simulated isotherms to chronocoulometry experiments, we extract parameters such as the electrosorption valency γ and the next-nearest-neighbor lateral interaction energy φ nnn . Both coverage-dependent and coverage independent γ were previously studied, assuming a constant φ nnn [I. Abou Hamad, Th. Wandlowski, G. Brown, P.A. Rikvold, J. Electroanal. Chem. 554-555 (2003) 211]. Here, a self-consistent, entirely electrostatic picture of the lateral interactions with a coverage-dependent φ nnn is developed, and a relationship between φ nnn and γ is investigated for Cl on Ag(100).

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Section: Resultssupporting

confidence: 60%

Section: Resultsmentioning

confidence: 83%

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Cl electrosorption on Ag(1 0 0): Lateral interactions and electrosorption valency from comparison of Monte Carlo simulations with chronocoulometry experiments

Hamad

Mitchell

Wandlowski³

et al. 2005

Electrochimica Acta

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“…[4,5] are excess supporting electrolyte and vanishing of the factor g. While certainly not exact, these assumptions are reasonable for the systems studied and give very good agreement between the computer simulations of the lattice-gas model and the experimental adsorption isotherms.…”

Section: Resultsmentioning

confidence: 77%

“…This is indeed the condition corresponding to the experiments reported in Refs. [4,5]. The electrode potential is then E = φ met + cst., where φ met is the potential of the metal.…”

Section: Electrosorption Valencymentioning

confidence: 99%

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

Rikvold

Wandlowski²,

Hamad

et al. 2007

Electrochimica Acta

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We reply to the remarks by Láng and Horányi [Electrochim. Acta Vol. (2006) page] on the meaning of the notion of "electrosorption valency" used in I. Abou Hamad et al., 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 γ such that |γe| < |ze|. We believe the conclusion of Láng and Horányi to the contrary is the result of an excessively severe charge-neutrality requirement.

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Electrochemistry of Silver

Orlik

Galus

2006

Encyclopedia of Electrochemistry

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The sections in this article are Properties of Ag Electrodes Polycrystalline Ag Electrodes Preparation Surface and Double‐layer Properties Single‐crystal Ag Electrodes Preparation Surface and Double‐layer Properties Surface Dynamics Affinity of Water and Nonaqueous Solvent Molecules to Ag Surfaces Adsorption of Inorganic Species on Ag Electrodes Halide Ions pc ‐ Ag Electrodes Single‐crystal Ag Electrodes Pseudohalide Oxygen and its Compounds Sulfur Compounds Inorganic Carbon Compounds Fullerenes Other Inorganic Compounds Metalocenes Adsorption of Organic Species on Ag Electrodes Hydrocarbons Pyridine and Other Nitrogen Compounds Carboxylic Acids Alcohols Sulfur Compounds Thiourea ( TU ) Alkanethiols and Self‐assembled Monolayers Biochemically Important Compounds Adsorption on Modified Ag Electrodes Other Organic Compounds Electrode Processes with Participation of Silver Electrodes Reactions Involving Oxidation of Ag Surface Oxygen and its Compounds Sulfur Compounds Carbon Compounds Electrode Reactions of Selected Organic Compounds, Adsorbed on Ag Electrodes Biochemically Important Species Underpotential Deposition Processes Ag UPD on Ag Ag UPD on Au and Pt Pb Tl Ni Chalcogenides Other Elements and Compounds Electrodeposition and Electrodissolution Processes of Ag Electrodeposition Processes Electrodissolution Processes Silver Compounds at the Oxidation States Higher Than I

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Electrosorption of Br and Cl on Ag(1 0 0): experiments and computer simulations

Cited by 35 publications

References 22 publications

Cl electrosorption on Ag(1 0 0): Lateral interactions and electrosorption valency from comparison of Monte Carlo simulations with chronocoulometry experiments

Cl electrosorption on Ag(1 0 0): Lateral interactions and electrosorption valency from comparison of Monte Carlo simulations with chronocoulometry experiments

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

Electrochemistry of Silver

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