物理化学学报 >> 1987, Vol. 3 >> Issue (05): 525-528.doi: 10.3866/PKU.WHXB19870515
Qin Erhua; Gu Linying
Abstract: Cathodic polarization curves has been measured by means of rotating disc and ring-disc electrodes in cupric pyrophosphate solution. Monovalence pyrophosphoric complex of copper has been detected as intermediate of reduction process. Influence of electrode potential on formation of the intermediate has been observed. By means of rotating disc methode the kinetic current of reduction process has been estamited. It has been found that in more negative potential range contribution of kinetic control yet is appreciable. Based on the polt I_(lim)/ω~(1/2)vs.I_(lim) existence of a preceding chemical process has been evidenced. The following reaction mechanism is proposed[Cu(P_2O_7)_2]~(6-) <=> [Cu(P_2O_7)]~(2-)+P_2O_7~(4-)[Cu(P_2O_7)]~(2-)→[Cu(P_2O_7)]~(3-)→Cu+P_2P_7~(4-)
秦尔华;谷林锳. 焦磷酸盐溶液中铜电沉积过程 Ⅱ. 用旋转电极的研究[J]. 物理化学学报, 1987, 3(05): 525-528.
Qin Erhua; Gu Linying. THE ELECTRODE PROCESSES OF COPPER ELECTRODEPOSITION FOR PYROPHOSPHATE SOLUTION II. THE STUDY BY ROTATING ELECTRODE METHOD[J]. Acta Phys. -Chim. Sin., 1987, 3(05): 525-528.
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