Analytical Studies Of Titanium Oxyhydroxide/Manganese Oxide Elaborated on Pure Copper Electrode: Influence of the Composite on the Electrochemical Behavior of the Substrate in 3% NaCl Medium

2018 ◽  
Vol 1 (3-4) ◽  
pp. 127-144 ◽  
Author(s):  
Asma Boulares ◽  
Leila Dhouibi ◽  
Patrice Berçot ◽  
El Mustafa Rezrazi
Keyword(s):  
Manganese Oxide ◽  
Electrochemical Behavior ◽  
Pure Copper ◽  
Copper Electrode ◽  
Analytical Studies ◽  
Titanium Oxyhydroxide

Effect of Friction Stir Welding on Electrochemical Behavior of Pure Copper

2016 ◽  
Vol 69 (7) ◽  
pp. 1423-1434 ◽  
Author(s):  
Arash Fattah-alhosseini ◽  
Amir Hossein Taheri ◽  
Mohsen K. Keshavarz
Keyword(s):  
Friction Stir Welding ◽  
Electrochemical Behavior ◽  
Pure Copper ◽  
Friction Stir

scholarly journals Electrochemical behavior of AgCu50 in alkaline media in the presence of chlorides and 2-mercaptobenzothiazole

2017 ◽  
Vol 53 (3) ◽  
pp. 349-356 ◽  
Author(s):  
V. Grekulovic ◽  
M. Rajcic-Vujasinovic ◽  
A. Mitovski
Keyword(s):  
Electrochemical Behavior ◽  
Electrode Surface ◽  
Anodic Polarization ◽  
Pure Copper ◽  
Inhibitory Effect ◽  
Open Circuit ◽  
Alkaline Media ◽  
Nacl Solution ◽  
Pure Silver ◽  
Current Densities

Electrochemical behavior of an alloy AgCu50, pure copper, and pure silver, respectively, was investigated by measuring the open circuit potentials using anodic potentiodynamic polarization and potentiostatic method in 0.1 moldm-3 NaOH + 0.02 moldm-3 NaCl solution, without and with adding 2-mercaptobenzothiazole in various concentrations (0.00001 - 0.001 moldm-3). Anodic polarization curves for AgCu50 alloy, showed four current peaks. Potentiostatic curves showed that values of the stationary current densities drop down with the increase of 2-mercaptobenzothiazole concentration in the electrolyte. The electrode surface was analyzed by optical microscopy after the potentiostatic oxidation. Micrographs confirmed that 2-mercaptobenzothiazole has got the inhibitory effect by forming the film of CuMBT and AgMBT which protect the electrode surface from corrosion.

Electric discharge machining using rapid manufactured complex shape copper electrode with cryogenic cooling channel

2020 ◽  
Vol 235 (1-2) ◽  
pp. 173-185
Author(s):  
Jagtar Singh ◽  
Gurminder Singh ◽  
Pulak M Pandey
Keyword(s):  
Electric Discharge ◽  
Computer Aided Design ◽  
Complex Shape ◽  
Pure Copper ◽  
Copper Electrode ◽  
Cryogenic Cooling ◽  
Electrode Wear ◽  
Cooling Channel ◽  
Electric Discharge Machining ◽  
Wear Rates

In this study, a rapid manufacturing process based on the combination of polymer three-dimensional printing and pressureless loose sintering was explored for the fabrication of complex shape electric discharge machining pure copper electrodes with the cryogenic cooling channel. The fabricated electrodes were used to perform electric discharge machining on D2 steel workpiece. The comparative study was performed on material removal and electrode wear rates between the solid copper electrode, rapid manufactured electrode without cryogenic cooling and with cryogenic cooling. Also, the surface characteristics of the worn electrode and the machined workpiece were studied with and without cryogenic cooling. The significant effect of the cryogenic cooling on the electrode wear rate and the surface roughness was observed. Better surface finish, small cracks and less debris were notified on the workpiece surface machined with rapid manufactured electrode with cryogenic cooling due to rapid dissipation of the heat from the surface of the electrode after machining. Similarly, few cracks and low carbon deposition was observed on the rapid manufactured electrode with cryogenic cooling surface after machining as compared to rapid manufactured electrode without cryogenic cooling. The sharp corner edges of the complex shape tool in rapid manufactured electrode with cryogenic cooling were retained after machining due to low melting and vaporization of the electrode material. The dimensional deviation of the machined surface with respect to computer-aided design model was compared. The rapid manufactured electrode with cryogenic cooling was found to machine the more accurate complex shape features in terms of dimensions on the workpiece as compared to rapid manufactured electrode without cryogenic cooling.

Electrochemical Behavior of Manganese Oxide Ores Using Coke Wastewater in Sulfuric Acid Solution

2019 ◽  
Vol 38 (3) ◽  
pp. e13039 ◽  
Author(s):  
Jinxing Kang ◽  
Yali Feng ◽  
Haoran Li ◽  
Zhuwei Du ◽  
Xiangyi Deng ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Acid Solution ◽  
Manganese Oxide ◽  
Sulfuric Acid Solution ◽  
Electrochemical Behavior ◽  
Coke Wastewater

Study on the Electrochemical Behavior of Nanostructure S-Doping Manganese Oxide as a Novel Supercapacitor Material

2014 ◽  
Vol 14 (9) ◽  
pp. 7255-7260 ◽  
Author(s):  
Chun He ◽  
Xiaoping Zhou ◽  
Yibin Gong ◽  
Zhenjie Sun ◽  
Yang Cao ◽  
...  
Keyword(s):  
Manganese Oxide ◽  
Electrochemical Behavior

ChemInform Abstract: Electrochemical Behavior of Non-Stoichiometric Manganese Oxide- Hydroxide.

ChemInform ◽  
2010 ◽  
Vol 24 (50) ◽  
pp. no-no
Author(s):  
N. D. IVANOVA ◽  
S. A. KIRILLOV ◽  
A. B. MISHCHENKO
Keyword(s):  
Manganese Oxide ◽  
Electrochemical Behavior ◽  
Oxide Hydroxide

Cuprous Oxide/Copper Particles Prepared by a Facile Wet-Chemical Reduction Approach as Anode Material for Li Ion Batteries

2012 ◽  
Vol 509 ◽  
pp. 28-35 ◽  
Author(s):  
Ya Juan Bian ◽  
Meng Yang ◽  
Xiang Yu Zhao ◽  
Li Qun Ma ◽  
Chuan Wei Jin ◽  
...  
Keyword(s):  
Anode Material ◽  
Discharge Capacity ◽  
Cuprous Oxide ◽  
Composite Electrode ◽  
Discharge Rate ◽  
Chemical Reduction ◽  
Pure Copper ◽  
Particle Surface ◽  
Lithium Ion ◽  
Copper Electrode

Cu2O/Cu composite particles were successfully synthesized by a novel facile template-free chemical reduction route at room temperature. X-ray diffraction (XRD) results showed that the sample mainly consisted of the Cu2O phase coexisting with a few Cu phases. Scanning electron microscopy (SEM) images indicated that the regular particles with a cubic shape about 2-3 μm is Cu2O. In addition, the electrochemical behavior of the Cu2O/Cu composite electrode and copper electrode during the charging and discharging process were both investigated. It was found that the first discharge capacity of Cu2O/Cu composite electrode was up to 650 mAh•g-1, which is much higher than the theoretical capacity of Cu2O (about 375 mAh•g-1). The additional capacity is attributed to the electrodeposition of lithium on pure copper, confirmed by the electrochemical property of copper as the anode material of the lithium-ion battery. The copper electrode presented a high discharge capacity of 280 mAh•g-1 during the first cycle. However, a large irreversible capacity as same as the cuprous oxide electrode was observed during the first charging process. It is indicated that deposition of lithium on the Cu particle surface acts as a barrier preventing the contact between the Cu and the electrolyte. Furthermore, the Cu2O/Cu composite electrode can exhibit reversible capacity of 210 mAh•g-1 at a charge-discharge rate of 30 mA•g-1 after 40 cycles.

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