| 镍在含硫氰酸根离子的硫酸溶液中电溶解的电流振荡 |
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| 引用本文： | 郑菊芳,李则林.镍在含硫氰酸根离子的硫酸溶液中电溶解的电流振荡[J].浙江师范大学学报(自然科学版),2008,31(4):432-436. |
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| 作者姓名： | 郑菊芳 李则林 |
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| 作者单位： | 浙江师范大学,物理化学研究所,浙江省固体表面反应化学重点实验室,浙江,金华,321004 |
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| 基金项目： | 国家自然科学基金
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| 摘 要： | 报道了镍在含硫氰酸根离子的硫酸溶液中电溶解的电流振荡新体系．实验结果表明，在硫酸溶液中，硫氰酸根离子的加入使镍在活化／钝化过渡区产生电流振荡，并且随着SCN^-浓度的升高或电极电势的降低，电流振荡周期逐渐变短．根据电化学实验和拉曼光谱测定结果，初步解释了镍在该介质中的阳极溶解行为和振荡机理．
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| 关 键 词： | 镍 硫氰酸根离子 电流振荡 拉曼光谱 |
Current oscillatory behaviors of nickel in sulfuric solution containing thiocyanate ions |
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| ZHENG Jufang,LI Zelin.Current oscillatory behaviors of nickel in sulfuric solution containing thiocyanate ions[J].Journal of Zhejiang Normal University Natural Sciences,2008,31(4):432-436. |
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| Authors: | ZHENG Jufang LI Zelin |
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| Institution: | ( Zhejiang Key btboratory for Reactive Chemistry on Solid Surfaces, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua Zhejiang 321004, China) |
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| Abstract: | A new current oscillatory system for nickel in sulfuric solution containing thiocyanate ions was investigated.The results indicated that the period of the current oscillations became shorter gradually while increasing the concentration of SCN-or decreasing the applied potential.Some preliminary explanations were given on the mechanism of the oscillatory electrodissolution of nickel in this medium according to the results from electrochemical experiments and in situ Raman spectra. |
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| Keywords: | Ni SCN~- current oscillation Raman spectra |
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