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The effect of B on copper about reduction and oxidation process from a A electrolyte is investigated. Electrochemical measurements like cyclic voltammetry (CV),EIS and potentiodynamic polarization techinique are used to research the electrochemical behavior of copper deposition, the distribution of cathode current density is tested by hull cell, and also using the IR spectra of the complex and the Absorbance curves of the electrolyte to analysis and conclude the form of coordination compounds. The results showed that: the addition of B can expand A electrolyte cathode current density, inhibit the copper electrodeposition, promote the dissolution of copper anode, and can inhibit the liberation of hydrogen; the reduction process of copper control by electrochemical occurred at a glassy carbon electrode gradually transformed into diffusion control with the B concentration increasing in solution. The addition of B in A electrolyte mainly to form the CuTEA(OH)2 coordination compounds, and adsorb on the electrode surface to affect the electrochemical reaction.

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zhingjw(½ð±Ò+10, ·­ÒëEPI+1): лл°ïÎÒÔÚʱ̬ÉϽøÐиÄÕý£¡ 2011-03-15 21:00:58
The effect of B on copper in the reduction and oxidation process in   electrolyte A  was investigated. Electrochemical measurements like cyclic voltammetry (CV),EIS and potentiodynamic polarization techinique were used to study the electrochemical behavior of copper deposition; the distribution of cathode current density was tested through hull cell; the IR spectra of the complex and the Absorbance curves of the electrolyte to analysis was used to characterise the coordination compounds. The results showed that: the addition of B could expand A electrolyte cathode current density, inhibit the copper electrodeposition, promote the dissolution of copper anode, and  inhibit the liberation of hydrogen; the reduction process of copper control by electrochemical occurred at a glassy carbon electrode gradually transformed into diffusion control with the B concentration increasing in solution. The addition of B in  electrolyte A was mainly to form the CuTEA(OH)2 coordination compounds, and  to adsorb on the electrode surface to affect the electrochemical reaction.
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