Influence of relative humidity on electrical properties of α-Al2O3 powders: Resistivity and electrochemical impedance spectroscopy

2005 ◽  
Vol 286 (2) ◽  
pp. 615-620 ◽  
Author(s):  
François Favre ◽  
Frédéric Villieras ◽  
Yann Duval ◽  
Edward McRae ◽  
Christophe Rapin
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Electrical Properties ◽  
Impedance Spectroscopy ◽  
Relative Humidity ◽  
Electrochemical Impedance ◽  
Α Al2o3

scholarly journals Interaction of Lorazepam with Planar Bilayer Lipid Membrane and Development of Impedimetric Sensor

2019 ◽  
Vol 31 (5) ◽  
pp. 1169-1175
Author(s):  
S. Sivakumar ◽  
S. Rameshkumar ◽  
S. Sathishkumar ◽  
A. Sankar
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Electrical Properties ◽  
Impedance Spectroscopy ◽  
Lipid Membrane ◽  
Electrochemical Impedance ◽  
Bilayer Lipid Membrane ◽  
Phospholipid Membrane ◽  
Planar Bilayer ◽  
Bilayer Lipid ◽  
The Stability

Artificial planar bilayer phospholipid membrane was formed in KCl bath solutions and its electrical properties have been analyzed using electrochemical impedance spectroscopy. The stability of planar bilayer lipid membrane depends on concentration of KCl in the bath. Changes in the electrical properties of planar bilayer lipid membrane with the addition of lorazepam were also studied using electrochemical impedance spectroscopy. Lorazepam gets partitioned into bilayer lipid membrane and exhibited a fluidization effect. The ionic conductance across the bilayer lipid membrane increased with the addition of lorazepam to the bath. An impedimetric sensor was developed for quantification of lorazepam in solution.

Synthesis and conductive performance of quaternary heteropoly acid H5SiW9Mo2VO40⋅13H2O

2018 ◽  
Vol 11 (04) ◽  
pp. 1850065 ◽  
Author(s):  
Zhirong Xie ◽  
Qingyin Wu ◽  
Fengwei He ◽  
Limei Ai
Keyword(s):  
Activation Energy ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Relative Humidity ◽  
Proton Conductivity ◽  
Heteropoly Acid ◽  
Electrochemical Impedance ◽  
Temperature Range ◽  
Higher Temperature ◽  
Conductive Mechanism

A novel molybdenum- and vanadium-substituted quaternary heteropoly acid H5SiW9Mo2VO40[Formula: see text][Formula: see text][Formula: see text]13H2O has been synthesized and characterized by IR, UV, TG-DTA and XRD. The proton conductive performance was studied by the electrochemical impedance spectroscopy (EIS), which demonstrated that H5SiW9Mo2VO40[Formula: see text][Formula: see text][Formula: see text]13H2O shows excellent proton conduction performance with proton conductivity reaching [Formula: see text][Formula: see text]S[Formula: see text]cm[Formula: see text] at 60∘C and 80% relative humidity. In the temperature range of measurements, conductivity enhances with higher temperature. The proton conductive mechanism of this new heteropoly acid is the vehicle mechanism due to the activation energy of 31.91[Formula: see text]kJ [Formula: see text] mol[Formula: see text].

Investigation of electrical properties with medium and heavy Brazilian crude oils by electrochemical impedance spectroscopy

Fuel ◽  
2019 ◽  
Vol 241 ◽  
pp. 42-52 ◽  
Author(s):  
John W.S. Rocha ◽  
Maristela A. Vicente ◽  
Breno N. Melo ◽  
Maria de Lourdes S.P. Marques ◽  
Regina C.L. Guimarães ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Electrical Properties ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Crude Oils

scholarly journals Electrochemical Impedance Spectroscopy (EIS) Characterization of Kitchen Utensils Used as Materials for Local Cooking in Two Culinary Media

2020 ◽  
Author(s):  
Jacques Sawadogo ◽  
Jean Boukari Legma
Keyword(s):  
Aluminum Alloy ◽  
Electrochemical Impedance Spectroscopy ◽  
Chemical Composition ◽  
Electrical Properties ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Open Circuit ◽  
Important Place ◽  
Traditional Production

This study is inscribed in the framework of the valorization of traditional kitchen utensils recycled from aluminum waste in Burkina Faso. In fact, these traditional kitchen utensils made of recycled aluminum alloys occupy a very important place in Burkina Faso’s kitchen. The effect of foods for consumption on its local utensils was studied using the non-stationary technique and electrochemical impedance spectroscopy. For this purpose, a sample of utensil has been deducted on traditional production site. The corrosion behavior of the recycled aluminum alloy ok know chemical composition was evaluated by analyzing the impedance spectra obtained at the open circuit potential, in the salt media titrated at 3 g·L−1 and rice. Modeling electrical properties by using of a simple equivalent circuit made it possible to interpret the results obtained by impedance spectroscopy. The results showed a susceptibility to pitting corrosion and were confirmed by the electrochemical impedance spectroscopy method.

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