Results 221 to 230 of about 201,934 (257)
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On a possible physical origin of the constant phase element
Electrochimica Acta, 2016Abstract Despite the numerous use of the constant phase element (CPE) in the modeling of the impedance characteristics of the electrochemical systems, the physical reasoning of this non-intuitive element is not clear. In this paper, the CPE impedance is analytically calculated using the anomalous diffusion theory.
Seyed Mohammad Rezaei Niya, Mina Hoorfar
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Influence of Electrode Surface Condition on Constant Phase Element Characterization
ECS Meeting Abstracts, 2011Abstract not Available.
Kerry N. Allahar +2 more
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Influence of Electrode Surface Contamination on Constant Phase Element Characterization
ECS Meeting Abstracts, 2011Abstract not Available.
Kerry Allahar +2 more
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Contribution of Surface Roughness to Constant-Phase Element (CPE) Behavior
ECS Meeting Abstracts, 2015While CPEs are commonly used to improve the fit to experimental impedance spectra, the explanation for their origin has been largely conjectural. In early experiments on solid electrodes, micro-scale surface roughness was believed to contribute to the non-ideality of electrochemical measurements.1 Borisova and Ershler were the first to
Christopher L. Alexander +2 more
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Impedance of constant phase element (CPE)-blocked diffusion in film electrodes
Journal of Electroanalytical Chemistry, 1998Abstract We construct a model of ac impedance response to blocked linear diffusion that has a sloped low frequency region in the impedance plot. The approach is based on the transmission line analogy to linear diffusion, and it is equivalent to solving Fick’s law with a boundary condition that allows us to set an arbitrary impedance response at low ...
J Bisquert +4 more
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Remarks on the energetics of interfaces exhibiting constant phase element behaviour
Journal of Electroanalytical Chemistry, 1998Abstract The energetics of electrified interfaces exhibiting constant phase element (CPE) behaviour is discussed. In the double layer region energy can be dissipated in various ways other than by charge transfer. Therefore, contrary to the statement in Zoltowski, J. Electroanal. Chem.
G. Láng, K.E. Heusler
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Constant phase elements, depressed arcs and analytic continuation: A critique
Journal of Electroanalytical Chemistry, 2008The connection between the constant phase element (CPE) and the depressed arcs often observed in the Nyquist plane is critically analyzed using the analytic continuation principle enunciated earlier by the author. A major inconsistency is pointed out in a model presently used to explain these depressed arcs.
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Note on the parameterization of the constant-phase admittance element
Solid State Ionics, 1984Abstract Some background is presented on the constant-phase admittance element, frequently used as part of a circuit for fitting immitance data on solid electrolytes. Several alternate ways of writing an expression for the constant-phase element are discussed and compared, and it is suggested that one particular parameterization seems preferably to ...
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Interpretation of Complex Capacitance Using Equivalent Circuit Involving Constant Phase Element
ECS Meeting Abstracts, 2015An electrochemical impedance spectroscopy (EIS) is powerful tool to evaluate the electrochemical parameters of inside the energy conversion devices. The electric-double layer capacitance C dl can be estimated by the curve fitting of the impedance spectrum generally. It is important to obtain the C dl of the electrode
Yoshinao Hoshi +3 more
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SPICE Modeling of Analog Circuits Containing Constant Phase Elements
2023 Communication and Information Technologies (KIT), 2023Dalibor Biolek +3 more
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