Pitfalls of the phase-shift method for determining adsorption isotherms

Horvat-Radošević, Višnja; Kvastek, Krešimir

doi:10.1016/j.elecom.2009.05.032

Cited by 7 publications

(31 citation statements)

References 17 publications

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“…(1) and (2) show that the effect of R P on −φ for intermediate frequencies is negligible. These aspects are completely overlooked, confused, and misunderstood in the comments on the phase-shift method by Horvat-Radosevic et al [30,32,34]. Correspondingly, all of the simulations of the phase-shift method using Eq.…”

Section: Theoretical and Experimental Backgrounds Of The Phase-shift mentioning

confidence: 99%

“…Correspondingly, all of the simulations of the phase-shift method using Eq. (1) that appear in these comments (where C P does not include C D ) [30,32,34] are basically invalid or wrong [27,28]. All of the analyses of the effect of R P on −φ for intermediate frequencies are also invalid or wrong (see Supporting Information of Refs.…”

Section: Theoretical and Experimental Backgrounds Of The Phase-shift mentioning

confidence: 99%

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Developments in Electrochemistry: The Phase-Shift Method and Correlation Constants for Determining the Electrochemical Adsorption Isotherms at Noble and Highly Corrosion-Resistant Metal/Solution Interfaces

Chun¹,

Chun²

2012

Developments in Electrochemistry

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Section: Theoretical and Experimental Backgrounds Of The Phase-shift mentioning

confidence: 99%

Section: Theoretical and Experimental Backgrounds Of The Phase-shift mentioning

confidence: 99%

Developments in Electrochemistry: The Phase-Shift Method and Correlation Constants for Determining the Electrochemical Adsorption Isotherms at Noble and Highly Corrosion-Resistant Metal/Solution Interfaces

Chun¹,

Chun²

2012

Developments in Electrochemistry

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“…These aspects are completely overlooked, confused, and misunderstood in the comments on the phase-shift method by HorvatRadosevic, Kvastek, and Lasia. 27,29,31) Correspondingly, all of the simulations of the phase-shift method using Eq. (1) that appear in these comments (where C P does not include C D ) 27,29,31) are basically invalid or wrong.…”

Section: Simplified Equivalent Circuit For the Phaseshift Methodsmentioning

confidence: 99%

“…27,29,31) Correspondingly, all of the simulations of the phase-shift method using Eq. (1) that appear in these comments (where C P does not include C D ) 27,29,31) are basically invalid or wrong. 25,26) All of the analyses of the effect of R P on −ϕ for intermediate frequencies are also invalid or wrong (see Supporting Information of Refs.…”

Section: Simplified Equivalent Circuit For the Phaseshift Methodsmentioning

confidence: 99%

“…[27][28][29][30][31] The objections to the phase-shift method are substantially attributed to a misunderstanding of the phase-shift method itself. 25,26) Note especially that all of the objections to the phase-shift method can be attributed to confusion regarding the applicability of related impedance equations for intermediate frequencies and a unique feature of the Faradaic resistance for the recombination step [1].…”

Section: -7)mentioning

confidence: 99%

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Determination of the Frumkin and Temkin Adsorption Isotherms of Hydrogen at Nickel/Acidic and Alkaline Aqueous Solution Interfaces Using the Phase-Shift Method and Correlation Constants

Chun¹

2012

Journal of the Korean Electrochemical Society

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:The phase-shift method and correlation constants, which are unique electrochemical impedance spectroscopy techniques for studying the linear relationship between the phase shift (potential (E) behavior for the optimum intermediate frequency (f o ) and the fractional surface coverage (0 ≤ θ ≤ 1) vs. E behavior, are proposed and verified to determine the Frumkin, Langmuir, and Temkin adsorption isotherms and the related electrode kinetic and thermodynamic parameters. At Ni/0.5 M H 2 SO 4 and 0.1 M LiOH aqueous solution interfaces, the Frumkin and Temkin adsorption isotherms (θ vs. E) of H for the cathodic hydrogen (H 2 ) evolution, interaction parameters (g), equilibrium constants (K), standard Gibbs energies (∆G θ o ) of H adsorption, and rates of change (r) of ∆G θ o with θ have been determined using the phaseshift method and correlation constants. A lateral repulsive interaction (g > 0) between the adsorbed H species appears. The value of K in the alkaline aqueous solution is much greater than that in the acidic aqueous solution.

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Analysis of high-frequency distortions in impedance spectra of conducting polyaniline film modified Pt-electrode measured with different cell configurations

Horvat-Radošević

Kvastek

2007

Electrochimica Acta

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Pitfalls of the phase-shift method for determining adsorption isotherms

Cited by 7 publications

References 17 publications

Developments in Electrochemistry: The Phase-Shift Method and Correlation Constants for Determining the Electrochemical Adsorption Isotherms at Noble and Highly Corrosion-Resistant Metal/Solution Interfaces

Developments in Electrochemistry: The Phase-Shift Method and Correlation Constants for Determining the Electrochemical Adsorption Isotherms at Noble and Highly Corrosion-Resistant Metal/Solution Interfaces

Determination of the Frumkin and Temkin Adsorption Isotherms of Hydrogen at Nickel/Acidic and Alkaline Aqueous Solution Interfaces Using the Phase-Shift Method and Correlation Constants

Analysis of high-frequency distortions in impedance spectra of conducting polyaniline film modified Pt-electrode measured with different cell configurations

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