نتایج جستجو برای: cathode electrodeposition
تعداد نتایج: 19084 فیلتر نتایج به سال:
Cu ion was electrodeposited potentiostatically in 0.05 M CuSO4 aqueous solutions onto a foreign substrate of TiN film sputtered on a stainless steel sheet. The amount of electricity was limited to 31.8 mC cm , which corresponds to a 10 nm thick film, deposited uniformly without any void formation. Two different electrolytic cell configurations were designed in order to discuss quantitatively th...
The rates of Cu deposition from aqueous solutions containing chelating agents, such as citric acid, nitrilotriacetic acid (NTA), and ethylenediaminetetraacetic acid (EDTA), in an electrochemical membrane cell were measured. An equimolar solution of chelating agents and metals was examined. The iridium oxide and Pt coated on titanium electrodes were used as the anode and cathode, respectively. T...
Electrodeposition of Ni-Co-Fe-Zn alloys was done in a chloride ion solution with the presence and absence of a Permanent Parallel Magnetic Field (PPMF). The PPMF was applied parallel to the cathode surface. The deposition profile was monitored chronoamperometrically. It was found that the electrodeposition current was enhanced in the presence of PPMF (9 T) compared to without PPMF. The percenta...
Lithium-ion batteries are commonly used as energy storage devices in a variety of applications. The cathode architectures and materials have a large influence on the performance of lithium-ion batteries, namely power and energy densities. Three-dimensional bicontinuous cathode structures should help improve the charge and discharge rate performances, while maintaining a high energy capacity. By...
Abstract Titanium diboride (TiB 2 ) is considered a promising material for wettable cathodes in aluminum electrolysis. The demand associated with the development of inert anode technologies to eliminate CO emissions caused by conventional reduction process. has been given special attention due its superior properties, such as high wettability, good electrical conductivity, wear resistance, and ...
We investigated pattern formation in Ag-In electrodeposition by constructing a morphology diagram that indicates the presence of pattern at a current density and cathode potential. The patterns that emerge as a fishbone and tree are found to have a fractal property. As the current density increases, the fishbone-like pattern with a fractal dimension of 1.44 changes into the tree-like pattern wi...
Recently a fingering morphology, resembling the hydrodynamic Saffman-Taylor instability, was identified in the quasi-two-dimensional electrodeposition of copper. We present here measurements of the dispersion relation of the growing front. The instability is accompanied by gravity-driven convection rolls at the electrodes, which are examined using particle image velocimetry. While at the anode ...
In NaCl-KCl-NaF-V2O3 molten salt, used graphite as an anode and carbon steel plate a cathode, vanadium was successfully prepared by salt electrodeposition. The reduction mechanism of electrodeposition is discussed, the influence NaF content, current density, temperature, time on are studied. optimum conditions obtained: composition XNaCl = 0.4, XKCl XNaF 0.2, V2O3 15%; adopt bidirectional pulse...
Materials synthesis often provides opportunities for innovation. We demonstrate a general low-temperature (260°C) molten salt electrodeposition approach to directly electroplate the important lithium-ion (Li-ion) battery cathode materials LiCoO2, LiMn2O4, and Al-doped LiCoO2. The crystallinities and electrochemical capacities of the electroplated oxides are comparable to those of the powders sy...
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