The Limitations of the Electrochemical Impedance Technique in the Study of Electrode Reactions Occurring in Low Conductivity Media

1989 ◽  
Vol 136 (4) ◽  
pp. 990-995 ◽  
Author(s):  
S. E. Faidi ◽  
J. D. Scantlebury
Keyword(s):  
Electrochemical Impedance ◽  
Electrode Reactions ◽  
Impedance Technique

Performance Evaluation of Crack-Like ZnO/PSi Nanostructure Chemical Solution Sensor via Electrochemical Impedance Technique

2020 ◽  
Vol 167 (2) ◽  
pp. 027520
Author(s):  
F. S. Husairi ◽  
K. A. Eswar ◽  
N. A. Asib ◽  
Muliyadi Guliling ◽  
M. Rusop ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Electrochemical Impedance ◽  
Chemical Solution ◽  
Impedance Technique

Electrochemical Impedance Technique — A Practical Tool for Corrosion Prediction

CORROSION ◽  
1988 ◽  
Vol 44 (5) ◽  
pp. 280-287 ◽  
Author(s):  
D. C. Silverman ◽  
J. E. Carrico
Keyword(s):  
Electrochemical Impedance ◽  
Impedance Technique ◽  
Practical Tool

Developing high-sensitivity ethanol liquid sensors based on ZnO/porous Si nanostructure surfaces using an electrochemical impedance technique

2014 ◽  
Vol 29 (7) ◽  
pp. 075015 ◽  
Author(s):  
Mohd Husairi ◽  
Jalal Rouhi ◽  
Kevin Alvin ◽  
Zainurul Atikah ◽  
Muhammad Rusop ◽  
...  
Keyword(s):  
Electrochemical Impedance ◽  
High Sensitivity ◽  
Porous Si ◽  
Impedance Technique

Application of the Electrochemical Impedance Technique to Study of Pillared Clays

1998 ◽  
Vol 10 (11) ◽  
pp. 3379-3385 ◽  
Author(s):  
J. C. Galván ◽  
A. Jiménez-Morales ◽  
R. Jiménez ◽  
J. Merino ◽  
A. Villanueva ◽  
...  
Keyword(s):  
Electrochemical Impedance ◽  
Pillared Clays ◽  
Impedance Technique

Electrochemical Characterization of Synthesized Ni–Co and Ni–Co–Fe Electrodes for Methanol Fuel Cell

2015 ◽  
Vol 12 (1) ◽  
Author(s):  
Subir Paul ◽  
Sk Naimuddin
Keyword(s):  
Fuel Cell ◽  
Electrode Materials ◽  
Electrochemical Impedance ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Sem Images ◽  
Cell Potential ◽  
X Ray ◽  
Electrode Reactions ◽  
The Cost

Pt based materials having high electrocatalytic properties are normally used for the electrodes of the fuel cell. But the cost of the material limits the commercialization of alcoholic fuel cell. Non-Pt based metals and alloys as electrode materials for methyl alcohol fuel cells have been investigated with an aim of finding high electrocatalytic surface property for the faster electrode reactions. Electrodes were fabricated by electrodeposition on pure Al foil, from an electrolyte of Ni, Co, and Fe salts. The optimum condition of electrodeposition was found by a series of experiments, varying the chemistry of the electrolyte, pH, temperature, current, and cell potential. Polarization study of the coated Ni–Co or Ni–Co–Fe alloy on pure Al was found to exhibit high exchange current density, indicating an improved electrocatalytic surface with faster charge–discharge reactions at anode and cathode and low overvoltage. Electrochemical impedance studies on the coated and uncoated surface clearly showed that the polarization resistance and impedance were decreased by Ni–Co or N–Co–Fe coating. X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), and atomic absorption spectroscopy (AAS) studies confirmed the presence of alloying elements and constituents of the alloy. The morphology of the deposits from scanning electron microscope (SEM) images indicated that the electrode surface was a three-dimensional space which increased the effective surface area for the electrode reactions to take place.

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