Electrochemical impedance characterization of ZnO semiconductor nanoparticles biosynthesized with Verbascum thapsus

2021 ◽  
Vol 32 (8) ◽  
pp. 10510-10519
Author(s):  
M. E. Martínez-Rosas ◽  
H. E. Garrafa-Gálvez ◽  
O. Nava ◽  
F. N. Murrieta-Rico ◽  
M. J. Chinchillas-Chinchillas ◽  
...  
Keyword(s):  
Electrochemical Impedance ◽  
Semiconductor Nanoparticles ◽  
Verbascum Thapsus ◽  
Impedance Characterization ◽  
Zno Semiconductor

Electrochemical impedance characterization of porous metal hydride electrodes

2004 ◽  
Vol 49 (22-23) ◽  
pp. 3879-3890 ◽  
Author(s):  
Elida B. Castro ◽  
Silvia G. Real ◽  
Alejandro Bonesi ◽  
Arnaldo Visintin ◽  
Walter E. Triaca
Keyword(s):  
Metal Hydride ◽  
Electrochemical Impedance ◽  
Porous Metal ◽  
Metal Hydride Electrodes ◽  
Impedance Characterization

Electrochemical Impedance Characterization of Porous Aluminum Oxide after Different Stages of Two-Step Anodization

2014 ◽  
Vol 953-954 ◽  
pp. 1282-1285 ◽  
Author(s):  
Jing Zhe Wang ◽  
Chun Hua Xu ◽  
Wei Cao ◽  
Yan He
Keyword(s):  
Aluminum Oxide ◽  
Electrochemical Impedance ◽  
Pure Aluminum ◽  
Aluminum Film ◽  
Equivalent Circuits ◽  
Anodized Aluminum ◽  
Porous Aluminum ◽  
Experimental Parameters ◽  
Impedance Characterization

In this paper, porous anodic aluminum oxide (AAO) membrane was prepared with highly pure aluminum film in 0.3M oxalic acid under dc voltage of 40V at about 8°C by two-step anodization. The morphology of the specimens processed in different stages of two-step anodization was observed with a scanning electron microscope (SEM). The electrochemical behavior of the anodized aluminum after different stages of two-step anodization was studied by electrochemical impedance spectroscopy (EIS). Different equivalent circuits were established to fit EIS experiment data, based on morphologies and structures of AAO during processing. The electrical elements in the equivalent circuits were used to explain experimental parameters.

scholarly journals Electrochemical Impedance Characterization of LiMnPO4 Electrodes with Different Additions of MWCNTs in an Aqueous Electrolyte

2019 ◽  
Vol 63 (3) ◽  
Author(s):  
Jesus Israel Barraza-Fierro ◽  
Tse-Ming Chu ◽  
Homero Castaneda-Lopez
Keyword(s):  
Water Oxidation ◽  
Electrochemical Impedance ◽  
Electrochemical Process ◽  
Multiple Reactions ◽  
Species Transformation ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Impedance Characterization ◽  
Oxidation Effect

An electrochemical characterization was performed in electrodes with different weight percentages of LiMnPO4 and multi-walled carbon nanotubes (MWCNTs) in aqueous solution. The redox potential of LiMnPO4 cathode is close to the electrolyte decomposition, which provides an ideal scenario to study multiple reactions on a single electrode surface involving parallel steps and species transformation in both solid and liquid state. Different processes were deconvoluted using cyclic voltammetry and electrochemical impedance spectroscopy. In addition, a surface coverage model was employed to theoretically quantify the limiting step of the electrochemical process. The results show the addition of MWCNTs increased the electrical conductivity of the cathode and improved the intercalation process in LiMnPO4. The optimal concentrations of MWCNTs, which enhanced the electrical properties and decreased the water oxidation effect, were 20 and 40 wt.%.

Electrochemical Impedance Characterization of Ultra-Thin Carbon Overcoats

2019 ◽  
Vol 25 (29) ◽  
pp. 151-167
Author(s):  
Worawarit Kobsiriphat ◽  
Laddawan Supadee ◽  
Krisda Siangchaew
Keyword(s):  
Electrochemical Impedance ◽  
Thin Carbon ◽  
Carbon Overcoats ◽  
Impedance Characterization

Electrochemical Impedance Characterization of Human and Bovine Enamel

1990 ◽  
Vol 69 (12) ◽  
pp. 1806-1811 ◽  
Author(s):  
M. Levinkind ◽  
T.J. Vandernooti ◽  
J.C. Elliott
Keyword(s):  
Electrochemical Impedance ◽  
Bovine Enamel ◽  
Impedance Characterization
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