Results 231 to 240 of about 7,015,469 (250)
Some of the next articles are maybe not open access.
Electrochimica Acta, 2017
Abstract Several issues concerning constant-phase element (CPE) behavior in the impedance response of films with a distributed resistivity are addressed here. To carry it out we consider two theoretical distributed models that account for exact CPE behavior and which provided us with the phenomenology of power-law frequency responses usually found in
Pedro Córdoba-Torres
openaire +3 more sources
Abstract Several issues concerning constant-phase element (CPE) behavior in the impedance response of films with a distributed resistivity are addressed here. To carry it out we consider two theoretical distributed models that account for exact CPE behavior and which provided us with the phenomenology of power-law frequency responses usually found in
Pedro Córdoba-Torres
openaire +3 more sources
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
openaire +3 more sources
Electrochimica Acta, 2017
Abstract The derivation of mathematical models accounting for the variation of physical properties along the thickness of thin systems such as oxide films, organic coatings and biological tissues, has been a challenging problem addressed for decades.
Pedro Córdoba-Torres
openaire +3 more sources
Abstract The derivation of mathematical models accounting for the variation of physical properties along the thickness of thin systems such as oxide films, organic coatings and biological tissues, has been a challenging problem addressed for decades.
Pedro Córdoba-Torres
openaire +3 more sources
On a possible physical origin of the constant phase element
Electrochimica Acta, 2016 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.
Seyed M R Niya, Hossein Montazerian
exaly +1 more source
Concerning the use of constant phase elements (CPEs) in the analysis of impedance data
Materials and Corrosion, 2010AbstractImpedance spectra obtained for Al6061 samples that had been anodized and sealed in two different processes and subjected to thermal cycling at three different temperatures have been analyzed using the Equivcrt software using a three‐time constant model with four constant phase elements (CPEs).
Y. Huang, H. Shih, F. Mansfeld
openaire +1 more source
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
openaire +1 more source
Performance of a constant phase element (CPE) sensor to detect adulteration in cow-milk with whey
2009 IEEE Sensors, 2009In this paper, the performance of a constant phase element (CPE) sensor has been studied for detecting adulteration of cow-milk with whey. Addition of whey in milk increases its volume and makes it acidic but the percentage of lactose content does not change significantly.
Siuli Das +4 more
openaire +1 more source
2022 Solid-State, Actuators, and Microsystems Workshop Technical Digest, 2022
Jorge Manrique Castro +1 more
openaire +1 more source
Jorge Manrique Castro +1 more
openaire +1 more source
On the rate capability of supercapacitors characterized by a constant-phase element
Journal of Power Sources, 2021Kirk J Ziegler +2 more
exaly