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KMID : 1059519890330040399
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Journal of the Korean Chemical Society
1989 Volume.33 No. 4 p.399 ~ p.405
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Effect of High Pressure of Voltammetric Parameters of Copper
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Bae Zun-Ung
Lee Heung-Lark
Park Hong-Soon
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Abstract
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The dependence of voltammetric parameters on the pressure for the reduction of Cu(Ⅱ) in 0.5M KCl aqueous solution has been studied. In this system micro platinum electrode, standard calomel electrode and a helix type of platinum wire were used as the working, the reference and the auxilary electrode, respectively. With increasing the pressure from 1 to 1,800 bars, the half wave potentials of first reduction wave are shifted to the more negative potentials. And the diffusion currents of first and second reduction wave become considerably larger with increase in pressure from 1 to about 1,000 bars but are getting smaller beyond 1,000 bars. The good linear relationships between diffusion current and the concentrations of Cu(Ⅱ) are established over all pressure range(1∼1,800 bars). The reversibility of the each reduction step is not changed with increasing pressure.
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KEYWORD
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