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of mass fraction was measured by spectrophotometer of style 721. Cathodic current efficiency was measured by copper coulometer[17-18]. Three-electrode system was adopted. H-style cell was served... for stable polarization 1 mV/s, and that for cyclic voltammetry 20 mV/s. 3 Effect of hydrogen inhibitor on cathodic current efficiency of Zn and Zn-Fe alloy elelctrodeposition For zinc ion, Zn(OH)42......
of 25 ℃. The electrolyte was made of 180 g/L NaOH dissolved in redistilled water. Cathodic current efficiency was measured by copper coulometer[15]. Partial current density curves were studied.... Accordingly, partial current density of hydrogen separation declines. Hydrogen inhibitor improves cathodic current efficiency of Zn-Fe alloy electroplating through acting with Fe and inhibiting......
of copper powder was carried out under super gravity field. The effects of super gravity field on cathodic current efficiency, cell voltage and the size of copper powders were studied. The mechanisms... Effect of super gravity field on cathodic current efficiency (Electrolyte: 10 g/L CuSO4+9.8 g/L H2SO4+1.5 g/L SDS) In order to show more clearly the advantage of super gravity field, electrolytic......
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, pH and temperature on the potentiodynamic cathodic polarization curves, cathodic current efficiency and throwing index, as well as the electrical conductivity of these baths. The optimum conditions... capacity; cathodic current efficiency  ......
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Electrochemical characteristics of stainless steel using impressed current cathodic protection in seawater Seok-Ki JANG, Min-Su HAN, Seong-Jong KIM Division of Marine Engineering, Mokpo Maritime... polymer (FRP) fishing boats. If the shaft material is exposed to a severely corrosive environment such as seawater, it should be protected using appropriate methods. The impressed current cathodic......
film was electrodeposited under -20 mV. The cathodic current became constant between -20 and -400 mV. Therefore, bismuth-copper electrodeposition changes from charge transfer controlling to diffusion.... Therefore, it is easy to control electrodeposition conditions by using methanesulfonate electrolyte. Key words: electrodepositon; lead-free electrolyte; Bi-Cu film; current efficiency  ......
KCl-LiCl-MgCl_2-SmCl_3-KF system. The effects of electrolytic temperature and cathodic current density on current efficiency were studied and optimal electrolysis parameters were obtained. The optimum electrolysis condition was a molten salt mixture of LiCl: KCl=50:50 (wt.%), electrolytic temperature: 660 ℃, cathode current density:9.5 A/cm~2 and electrolysis time of 40 min. The current efficiency......
is smaller and the current efficiency is lower. The compact titanium products with large grains and current efficiency of 87.4% are obtained at cathodic current density of 0.3 A/cm2 when tc=20 min and n=1... of electrodeposition at different parameters 表2 不同条件下电流效率值 Table 2 Current efficiency under different conditions 3 结论 1) 脉冲电流电解较恒电流电解更易得到较致密的阴极产物,且产物结晶度更高,氧氮含量更低. 2) 阴极产物沉积形貌与脉冲电解参数有关.电解周期较短时,通断......