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金属电极在含油模拟海水中电化学行为的研究
曹晓燕1, 李春玲1, 王 佳1, 张慧玲1, 谭丽菊1
中国海洋大学海洋化学理论与工程技术教育部重点实验室
摘要:
采用电化学阻抗和恒电位阶跃技术研究了金属铂和镍电极在含油氯化钠溶液中的电化学行为特征, 测量了不同含油量体系中电化学信号的变化, 并建立了相应的等效电路。实验结果表明, 同样条件下多孔电极比平面电极的电化学信号响应显著, 泡沫镍电极与铂黑电极相比对含油量的响应则更为明显。
关键词:  交流阻抗  恒电位阶跃  油  海水
DOI：
分类号:
基金项目:国家自然科学基金资助项目(40676047)
Electrochemical behavior of metal electrodes in NaCl solution containing oil
Abstract:
Electrochemical impedance spectroscopy (EIS) technique and potential step method were employed to study the electrochemical behaviour of Pt and Ni electrodes in 3.5% NaCl solution containing oil. Based on the impedance spectrum characteristics, the equivalent circuit models for these electrodes were established. The research results showed that the porous electrodes respond better, and the foam nickel electrodes display the more significant respondance than the Pt black one for the different contents of oil in NaCl solution.
Key words:  Electr ochemical impedance  potential step method  oil  sea water
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