Characterization of ion transport in thin films using electrochemical impedance spectroscopyI. Principles and theory

Freger, Viatcheslav; Bason, Sarit

doi:10.1016/j.memsci.2007.06.046

Cited by 97 publications

(78 citation statements)

References 50 publications

(99 reference statements)

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“…The value of permeability ω t may then be determined from this resistance, which shows up in EIS spectrum as a plateau at the lowest frequencies [28,30]. Note that this value is an average for the two coupled ions.…”

Section: Methodsmentioning

confidence: 99%

“…The principles and protocols of the ion transport measurements through the film were fully elaborated in our previous publications [16,28,30]. The measurements may involve two kinds of salts:…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

“…However, using a free active layer the data can be directly obtained using techniques such as electrochemical impedance spectroscopy (EIS) and chronoamperometry (CA) [28]. This work then sought to demonstrate the consistency between filtration results for composite membranes and diffusion measurements by EIS and CA for free films in order to validate the conclusions drawn previously from phenomenological analysis.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ion transport in the polyamide layer of RO membranes: Composite membranes and free-standing films

Bason

Oren

Freger

2011

Journal of Membrane Science

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Section: Methodsmentioning

confidence: 99%

Section: Electrochemical Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ion transport in the polyamide layer of RO membranes: Composite membranes and free-standing films

Bason

Oren

Freger

2011

Journal of Membrane Science

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“…In this work, however, there was no defined maximum Z" and thus capacitance was calculated over select frequency ranges representing regions where the given capacitive element dominated, i.e., where the phase angle was closest to −90 • . Further discussion of equivalent electrical circuit modeling for EIS of coatings and thin films can be found in the literature [18,19].…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

Assessing the Protective Quality of Wax Coatings on Bronze Sculptures Using Hydrogel Patches in Impedance Measurements

et al. 2016

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Abstract:In this work, we used chemically cross-linked acrylamide-based hydrogel patches that have been specifically developed for use as solid electrolytes in Electrochemical Impedance Spectroscopy to measure the impedance of two waxed bronze sculptures at the Seattle Art Museum's (SAM) Olympic Sculpture Park (OSP) and compare those results to laboratory test panels. We determined that the impedance response in the frequency range in which measurements may be taken (10 kHz to 1 MHz) is mostly capacitive and that a freshly applied wax coating should ideally be less than 1 nF·cm −2 for optimal protective performance.

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“…In a first time, this technique was used for the characterization of the impedance behavior of SAM modified gold electrode and for subsequent extraction of useful information from this. In Figure 3 Nyquist impedance plots for Au-electrode and SAM modified electrode at −400 mV dc potentials are presented, where Re(z) is the real part and Im(z) is the imaginary part of the complex impedance Z [35]. The membrane resistance values, R m , were extracted from fitted data (Table 3) which are 8292 and 37120 Ωcm 2 for bare Au-electrode and mixed modified Auelectrode, respectively.…”

Section: Impedance Measurementmentioning

confidence: 99%

Sensitivity Improvement of an Impedimetric Immunosensor Using Functionalized Iron Oxide Nanoparticles

et al. 2009

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This work has explored the development of impedimetric immunosensors based on magnetic iron nanoparticles (IrNP) functionalized with streptavidin to which a biotinylated FAB part of the antibody has been bound using a biotin-streptavidin interaction. SPR analysis shows a deviation on the measured (angle) during antigen-antibody recognition whereas label free detection using by EIS allows us to monitor variation of polarization resistance. Before detection, layers were analyzed by FTIR and AFM. Compared to immobilization of antibody on bare gold surface using aminodecanethiol SAM, antibody immobilization on nanoparticles permitted to reach lower detection limit: 500 pg/ml instead of 1 ng/ml to in the case of EIS and 300 ng/ml instead of 4.5 μg/ml in the case of SPR. Thus, it permitted to improve the sensitivity: from 257.3 Ω · cm 2 · μg −1 · ml to 1871 Ω · cm 2 · μg −1 · ml in the case of EIS and from 0.003• μg −1 · ml to 0.094 • μg −1 · ml in the case of SPR.

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Characterization of ion transport in thin films using electrochemical impedance spectroscopyI. Principles and theory

Cited by 97 publications

References 50 publications

Ion transport in the polyamide layer of RO membranes: Composite membranes and free-standing films

Ion transport in the polyamide layer of RO membranes: Composite membranes and free-standing films

Assessing the Protective Quality of Wax Coatings on Bronze Sculptures Using Hydrogel Patches in Impedance Measurements

Sensitivity Improvement of an Impedimetric Immunosensor Using Functionalized Iron Oxide Nanoparticles

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