Removal of Fluorine from Zinc Electrolyte by Cerium Silicate

2021 ◽  
Author(s):  
Zhiqin Liao ◽  
Shijie Zhao ◽  
Yanyang Dai ◽  
Zhirong Li ◽  
Mingyu Wang
Keyword(s):  
Zinc Electrolyte

scholarly journals Study of Hillock and Zinc Whisker Evolution in Five Different Cable Tray Coatings

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 325
Author(s):  
Borja Arroyo ◽  
Marion Roth ◽  
José Alberto Álvarez ◽  
Ana Isabel Cimentada ◽  
Sergio Cicero ◽  
...  
Keyword(s):  
Nickel Coating ◽  
Alkaline Electrolyte ◽  
Steel Wires ◽  
Base Steel ◽  
Bending Stresses ◽  
Zinc Electrolyte ◽  
The Subject ◽  
Whisker Density ◽  
Zinc Coatings ◽  
Zinc Nickel

The main objective of this work is the study of the hillock and zinc whisker evolution of five different commercial zinc coatings applied on the same base steel wires of the patented EASYCONNECT system cable trays manufactured by VALDINOX Ltd.: white zinc alkaline electrolyte, yellow zinc trivalent electrolyte, acid zinc electrolyte, hot dip galvanized, and zinc nickel coating. The limited literature on the subject is summarized, and then the coating thickness, chemical composition, hardness and surface rugosity are characterized. The hillock and whisker density evolution are evaluated over a period of 12 months, considering the presence of compression bending stresses. It is concluded that the white alkaline and yellow trivalent coatings are the most affected, while the zinc-nickel shows the best behavior with no presence of whiskers; the acid zinc electrolyte also shows good results despite the delayed appearance of whiskers from the ninth month; the hot-dip galvanized coating does not show any presence of zinc whiskers or hillocks.

scholarly journals REVIEW OF PROMISING METHODS OF FLUORIDE AND CHLORIDE IONS REMOVAL FROM THE SOLUTIONS FOR ZINC ELECTROLYTE PREPARATION FOR THE ELECTROEXTRACTION STAGE

2016 ◽  
Vol 111 (4) ◽  
pp. 155-169 ◽  
Author(s):  
Sergey Mamyachenkov ◽  
◽  
Nina Nemchinova ◽  
Vitaliy Egorov ◽  
Ruslan Pazylkhan ◽  
...  
Keyword(s):  
Chloride Ions ◽  
Zinc Electrolyte

The energy storage behavior of a phosphate-based cathode material in rechargeable zinc batteries

2021 ◽  
Author(s):  
Cuicui Li ◽  
Wanlong Wu ◽  
Hua-Yu Shi ◽  
Zengming Qin ◽  
Duo Yang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Cathode Material ◽  
Electrochemical Activity ◽  
Type Structure ◽  
Zinc Electrolyte ◽  
Storage Behavior

Li3V2(PO4)3 transforms into a VOPO4 type structure and delivers high electrochemical activity as well as stability with a water–acetonitrile zinc electrolyte.

The Removal of Cobalt from Zinc Electrolyte by Cementation: A Critical Review

2000 ◽  
Vol 20 (4-6) ◽  
pp. 325-356 ◽  
Author(s):  
A. NELSON ◽  
W. WANG ◽  
G. P. DEMOPOULOS ◽  
G. HOULACHI
Keyword(s):  
Critical Review ◽  
Zinc Electrolyte

Screening design test for cobalt cementation from zinc electrolyte

1983 ◽  
Vol 14 (3) ◽  
pp. 495-497 ◽  
Author(s):  
Mark S. Blaser ◽  
Thomas J. O’Keefe
Keyword(s):  
Screening Design ◽  
Zinc Electrolyte

scholarly journals ELECTROPHYSICAL PROPERTIES OF ZINC SULFATE SOLUTIONS IN PRESENCE OF WATER DISPERSION OF MULTI-LAYERED CARBON NANOTUBES

2018 ◽  
Vol 61 (12) ◽  
pp. 115-121
Author(s):  
Evgeniy S. Vavilov ◽  
Alexandr I. Biryukov ◽  
Igor N. Kovalev ◽  
Alexandr V. Tolchev
Keyword(s):  
Carbon Nanotubes ◽  
Zinc Sulfate ◽  
Carbon Nanomaterials ◽  
Reaction System ◽  
Electrophysical Properties ◽  
Electron Conduction ◽  
Sulfate Solutions ◽  
Zinc Electrolyte ◽  
Ph Level ◽  
Solution Changes

Multi-layered carbon nanotubes were synthesized via hydrocarbons pyrolysis method in the presence of argon overpressure in the reaction system. With the use of the scanning electron microscope method, a morphology of the obtained materials were investigated. Synthetized nanotubes were modified by treating with solutions of various reagents: sodium hydroxide (10 mass. %), azotic (40 mass. %) and perchloric (40 mass. %) acids, chloroform. The sample was placed in the reagent solution with the volume of 10 ml and exposed for 24 h. Electrophysical investigation of multi-layered carbon nanotubes dispersions with zinc sulfate additions was carried with the use of the impedance meter Z - 1500J in a range of frequencies of 10 Hz - 2 MHz. It was found that the carbon nanomaterials effect on the electrophysical properties of zinc electrolyte. A change in electrical conductivity of zinc sulfate solutions with the addition of multi-layered carbon nanotubes with various morphology and surface modifications was studied. With the use of impedance spectroscopy method, there were examined the electrophysical properties of zinc electrolyte with additions of carbon nanotubes in the presence of various components concentration and pH level of the environment, that was obtained via the original technique. It is shown that electron conduction increases with the rise of nanotubes concentration, but substantially levels with the rise of zinc sulfate concentration. Moreover, insertion of multi-layered carbon nanotubes in the solution changes a state of equivalent circuit and its elements. It is concluded that insert of multi-layered carbon nanotubes has unambiguous impact on the electrophysical properties of zinc sulfate solutions. Based on the obtained data, a scheme of electrolyte and nanotubes interaction is offered.  

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