Effects of temperature and current density on zinc electrodeposition from acidic sulfate electrolyte with [BMIM]HSO4 as additive

2009 ◽  
Vol 39 (8) ◽  
pp. 1207-1216 ◽  
Author(s):  
Qi Bo Zhang ◽  
Yi Xin Hua ◽  
Tie Guang Dong ◽  
Dan Gui Zhou
Keyword(s):  
Current Density ◽  
Sulfate Electrolyte ◽  
Zinc Electrodeposition ◽  
Acidic Sulfate ◽  
Effects Of Temperature

Effects of antimony(III) on zinc electrodeposition from acidic sulfate electrolyte containing [BMIM]HSO4

2009 ◽  
Vol 39 (12) ◽  
pp. 2329-2335 ◽  
Author(s):  
Qibo Zhang ◽  
Yixin Hua ◽  
Yan Li ◽  
QiFei Pei
Keyword(s):  
Sulfate Electrolyte ◽  
Zinc Electrodeposition ◽  
Acidic Sulfate

Effect of Magnesium Ion on the Zinc Electrodeposition from Acidic Sulfate Electrolyte

2011 ◽  
Vol 43 (2) ◽  
pp. 555-560 ◽  
Author(s):  
Lin Tian ◽  
Gang Xie ◽  
Xiao-Hua Yu ◽  
Rong-Xing Li ◽  
Gui-Sheng Zeng
Keyword(s):  
Magnesium Ion ◽  
Sulfate Electrolyte ◽  
Zinc Electrodeposition ◽  
Acidic Sulfate

scholarly journals Estimation of the exchange current density and comparative analysis of morphology of electrochemically produced lead and zinc deposits

2017 ◽  
Vol 82 (5) ◽  
pp. 539-550
Author(s):  
Nebojsa Nikolic ◽  
Predrag Zivkovic ◽  
Goran Brankovic ◽  
Miomir Pavlovic
Keyword(s):  
Current Density ◽  
Exchange Current ◽  
Exchange Current Density ◽  
Diffusion Current ◽  
Electron Microscopic ◽  
Zinc Electrodeposition ◽  
Lead And Zinc ◽  
Current Densities ◽  
Limiting Diffusion Current ◽  
Zinc Deposits

The processes of lead and zinc electrodeposition from the very dilute electrolytes were compared by the analysis of polarization characteristics and by the scanning electron microscopic (SEM) analysis of the morphology of the deposits obtained in the galvanostatic regime of electrolysis. The exchange current densities for lead and zinc were estimated by comparison of experimentally obtained polarization curves with the simulated ones obtained for the different the exchange current density to the limiting diffusion current density ratios. Using this way for the estimation of the exchange current density, it is shown that the exchange current density for Pb was more than 1300 times higher than the one for Zn. In this way, it is confirmed that the Pb electrodeposition processes are considerably faster than the Zn electrodeposition processes. The difference in the rate of electrochemical processes was confirmed by a comparison of morphologies of lead and zinc deposits obtained at current densities which corresponded to 0.25 and 0.50 values of the limiting diffusion current densities.

Effects of Temperature on Galvanic Corrosion Behaviors of Super 13Cr and P110 Steel Couples in NaCl Solution

2014 ◽  
Vol 1033-1034 ◽  
pp. 829-833 ◽  
Author(s):  
Xiao Fei Yao ◽  
Wei Tian ◽  
Ling Wu
Keyword(s):  
Current Density ◽  
Corrosion Current Density ◽  
Galvanic Corrosion ◽  
Corrosion Current ◽  
Potential Difference ◽  
Nacl Solution ◽  
P110 Steel ◽  
Corrosion Behaviors ◽  
Effects Of Temperature ◽  
Increasing Temperature

Electrochemical methods were employed to investigate galvanic corrosion behaviors of super13Cr and P110 couples in NaCl solution at different temperature. Corrosion morphologies and products of the couples were analyzed by SEM, EDS and XRD. The results showed that there were potential difference distinctly between super 13Cr and P110 steel in NaCl solution at different temperature, when its contacted, galvanic corrosion of super 13Cr-P110 steel couples will occurred. P110 was accelerated to corrode as anode and super 13Cr was protected as cathode in the coupling. Super 13Cr-P110 steel couples could not be used as P110 without any protection in NaCl solution at 20 °C to 80 °C. Corrosion current density and galvanic corrosion of super13Cr-P110 steel couples increased with increasing temperature in NaCl solution, of which corrosion products are Fe3O4.

scholarly journals Electrodeposition of Fe powder from acid electrolytes

2008 ◽  
Vol 73 (8-9) ◽  
pp. 861-870 ◽  
Author(s):  
Vesna Maksimovic ◽  
Ljubica Pavlovic ◽  
Borka Jovic ◽  
Miomir Pavlovic
Keyword(s):  
Characteristic Feature ◽  
Current Density ◽  
Soap Solution ◽  
Solution Treatment ◽  
The Other ◽  
Sulfate Electrolyte ◽  
Chloride Electrolyte ◽  
Fe Powder ◽  
Good Protection ◽  
Polarization Characteristics

Polarization characteristics of the electrodeposition processes of Fe powders from sulfate and chloride electrolytes and the morphology of the obtained powders were investigated. The morphology depended on the anion pre sence in the electrolyte but not on the current density in the investigated range. A characteristic feature of the dendritic powder with cauliflower endings obtained from sulfate electrolyte is the presence of cone-like cavities and the crystallite morphology of the powders surface. On the other hand, Fe powders electrodeposited from chloride electrolyte appear in the form of agglomerates. A soap solution treatment applied as a method of washing and drying provides good protection from oxidation of the powders.

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