Electrowinning of Nickel and Cobalt from Non-circulated Sulfate Electrolyte

2022 ◽  
Author(s):  
Amin Kazem-Ghamsari ◽  
Hadi Abdollahi
Keyword(s):  
Sulfate Electrolyte

Kinetics of anodic formation and cathodic reduction of MnO2 in the sulfate electrolyte solutions

2008 ◽  
Vol 44 (11) ◽  
pp. 1299-1306 ◽  
Author(s):  
O. G. Tsiklauri ◽  
T. A. Marsagishvili ◽  
G. S. Tsurtsumiya ◽  
S. A. Kirillov ◽  
D. I. Dzanashvili
Keyword(s):  
Electrolyte Solutions ◽  
Cathodic Reduction ◽  
Sulfate Electrolyte ◽  
Kinetics Of

Investigation of the kinetics and the morphology of cementation products formed during purification of a synthetic zinc sulfate electrolyte

2018 ◽  
Vol 181 ◽  
pp. 169-179 ◽  
Author(s):  
Toni Karlsson ◽  
Yu Cao ◽  
Yuda Colombus ◽  
Britt-Marie Steenari
Keyword(s):  
Zinc Sulfate ◽  
Sulfate Electrolyte

Interactions of Chloride and 3-Mercapto-1-Propanesulfonic Acid in Acidic Copper Sulfate Electrolyte

2008 ◽  
Vol 155 (5) ◽  
pp. D349 ◽  
Author(s):  
Hung-Ming Chen ◽  
Satish J. Parulekar ◽  
Alan Zdunek
Keyword(s):  
Copper Sulfate ◽  
Sulfate Electrolyte

scholarly journals Implementation of the Chicot–Lesage Composite Hardness Model in a Determination of Absolute Hardness of Copper Coatings Obtained by the Electrodeposition Processes

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1807
Author(s):  
Ivana O. Mladenović ◽  
Jelena S. Lamovec ◽  
Dana G. Vasiljević-Radović ◽  
Rastko Vasilić ◽  
Vesna J. Radojević ◽  
...  
Keyword(s):  
Preferred Orientation ◽  
Sulfate Electrolyte ◽  
X Ray Diffraction ◽  
Fine Grained ◽  
Atomic Force ◽  
Copper Coatings ◽  
Hardness Model ◽  
Composite Hardness ◽  
Coating Hardness

The influence of various electrolysis parameters, such as the type of cathode, composition of the electrolyte and electrolysis time, on the morphology, structure and hardness of copper coatings has been investigated. Morphology and structure of the coatings were analyzed by scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray diffraction (XRD), while coating hardness was examined by Vickers microindentation test applying the Chicot–Lesage (C–L) composite hardness model. Depending on the conditions of electrolysis, two types of Cu coatings were obtained: fine-grained mat coatings with a strong (220) preferred orientation from the sulfate electrolyte and smooth mirror bright coatings with a strong (200) preferred orientation from the electrolyte with added leveling/brightening additives. The mat coatings showed larger both measured composite and calculated coating hardness than the mirror bright coatings, that can be explained by the phenomena on boundary among grains. Independent of electrolysis conditions, the critical relative indentation depth (RID) of 0.14 was established for all types of the Cu coatings, separating the zone in which the composite hardness can be equaled with the coating hardness and the zone requiring an application of the C–L model for a determination of the absolute hardness of the Cu coatings.

Electrodeposition of Copper-Tin Alloy from Sulfate Electrolyte

2004 ◽  
Vol 77 (7) ◽  
pp. 1104-1107 ◽  
Author(s):  
G. I. Medvedev ◽  
N. A. Makrushin ◽  
O. V. Ivanova
Keyword(s):  
Sulfate Electrolyte

scholarly journals Effect of Graphene Oxide Concentration in Electrolyte on Corrosion Behavior of Electrodeposited Zn–Electrochemical Reduction Graphene Composite Coatings

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 758 ◽  
Author(s):  
Yang ◽  
Zhang ◽  
Wang ◽  
Wang ◽  
Chen ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Electrochemical Impedance ◽  
Composite Coatings ◽  
Laser Raman Spectroscopy ◽  
304 Stainless Steel ◽  
Sulfate Electrolyte ◽  
X Ray Diffraction ◽  
X Ray ◽  
Tafel Polarization ◽  
Laser Raman

Pure Zn and Zn–ERGO composite coatings were prepared by direct current electrodeposition on 304 stainless steel. Samples were characterized by X-ray diffraction (XRD), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM/EDS), and laser Raman spectroscopy (Raman). Results obtained have shown that the concentration of GO sheets in zinc sulfate electrolyte has an important effect on the preferred crystal orientation and the surface morphology of Zn–ERGO composite coatings. A study of the corrosion behavior of the coatings by Tafel polarization and electrochemical impedance spectroscopic (EIS) methods leads to the conclusion that the Zn-1.0 g/L ERGO composite coating possesses the best corrosion resistance compared to the pure Zn coating and other composite coatings in this study.

Sign in / Sign up

Export Citation Format

Share Document