Characterization of batteries by electrochemical and non-electrochemical techniques

2007 ◽  
pp. 119-201 ◽  
Author(s):  
Doron Aurbach
Keyword(s):  
Electrochemical Techniques

Application of Electrochemical Techniques to Characterization of the Corrosion Behaviors of GW63 Alloys

2007 ◽  
Vol 546-549 ◽  
pp. 571-574
Author(s):  
Xing Wu Guo ◽  
Jian Wei Chang ◽  
Shang Ming He ◽  
Peng Huai Fu ◽  
Wen Jiang Ding
Keyword(s):  
Electrochemical Impedance ◽  
Electrochemical Techniques ◽  
Open Circuit ◽  
Cyclic Polarization ◽  
Time Curve ◽  
Completely Monotonic ◽  
Treatment Conditions ◽  
Impedance Variation ◽  
Corrosion Behaviors

The corrosion behavior of GW63 (Mg-6wt.%Gd-3wt.%Y-0.4wt.%Zr) alloys in 5% NaCl aqueous solution has been investigated by PARSTAT 2273 instrument. The Open Circuit Potential (ECORR) vs. time curve, cyclic polarization (Pitting Scans) curve and Electrochemical Impedance Spectroscopy (EIS) was measured for the GW63 alloys in as-cast and T6 heat treatment conditions. The EIS results indicated that the tendency of impedance variation for as-cast condition was monotonic decreasing, however, the tendency of variation for T6 condition was not completely monotonic but the total tendency was decreasing. The values of impedance of GW63 alloy at 0.1 Hz are about 103 ohm-cm2 for as-cast and T6 condition.

The Surface Characterization of Polyacrylonitrile-based Carbon Fibres by Electrochemical Techniques

1989 ◽  
Vol 1 (1) ◽  
pp. 85-94 ◽  
Author(s):  
S. J. Porter ◽  
C. L. DeArmitt ◽  
R. Robinson ◽  
J. P. Kirby ◽  
D. C. Bott
Keyword(s):  
Surface Characterization ◽  
Electrochemical Techniques ◽  
Carbon Fibres

In-Situ Characterization Of Ultra-Small Magnetic Junctions Made By Electrochemical Techniques

2001 ◽  
Vol 674 ◽  
Author(s):  
A. Sokolov ◽  
J.R. Jennings ◽  
C-S Yang ◽  
J. Redepenning ◽  
B. Doudin
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Low Temperatures ◽  
Coulomb Blockade ◽  
Electrochemical Impedance ◽  
Electrochemical Techniques ◽  
In Situ Characterization

ABSTRACTElectrochemical impedance spectroscopy is used to characterize the growth of NiO over Ni electrodes. We find a limited increase of thickness and a significant increase of porosity of the oxide as a function of time and anodization potential. Conductance measurements performed on Ni/NiO/Co junctions of 30 nm diameters indicate the presence of a Coulomb blockade at low temperatures and small bias. Tunneling is observed at higher bias. Small magnetoresistance ratios (1%) are found.

Preparation and Characterization of Gold Nanostructures of Controlled Dimension by Electrochemical Techniques

2007 ◽  
Vol 111 (34) ◽  
pp. 12643-12649 ◽  
Author(s):  
Sandro Cattarin ◽  
Dominik Kramer ◽  
Alberto Lui ◽  
Marco M. Musiani
Keyword(s):  
Electrochemical Techniques ◽  
Gold Nanostructures

Corrosion Characterization of Titanium Alloys by Electrochemical Techniques in Artificial Saliva and SBF Solution

2008 ◽  
Vol 396-398 ◽  
pp. 315-318 ◽  
Author(s):  
Neide A. Mariano ◽  
Rafael G. Oliveira ◽  
E.I. Braga ◽  
E.C.S. Rigo
Keyword(s):  
Corrosion Resistance ◽  
Artificial Saliva ◽  
Electrochemical Techniques ◽  
Pure Titanium ◽  
Protective Film ◽  
Commercially Pure Titanium ◽  
Passive Region ◽  
Sbf Solution ◽  
Cp Ti

The commercially pure titanium (cp Ti) biocompatibility is due to its chemical stability in organism because of the presence of a fine film and impermeable of titanium oxide over the metal surface that confirms its corrosion resistance, changing this material's surface has been the direction of many research groups, these modifications may have influence in corrosion resistance. In this work was investigated the electrochemical behavior of cp Ti, without and with coating of the hydroxyapatite, commonly used implant materials, in artificial saliva and simulated body fluid (SBF) solution at 25oC and pH=7.4. The potentiodynamic polarization curves, shows that there is a passive region with low current’ density, indicating that in the investigated conditions the formation of a surface protective film occurs. In the studied conditions it was observed that hydroxyapatite layer has influence on corrosion resistance properties.

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