| Electrochemical behavior of K3Fe（CN）6 in water-in-oil microemulsion |
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| 引用本文： | 周海晖,曾伟,英晓芳,曾金祥,李丹,陈金华,旷亚非.Electrochemical behavior of K3Fe（CN）6 in water-in-oil microemulsion[J].中南工业大学学报(英文版),2009,16(1):61-65. |
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| 作者姓名： | 周海晖 曾伟 英晓芳 曾金祥 李丹 陈金华 旷亚非 |
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| 作者单位： | College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China |
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| 基金项目： | Projects（20673036, J0830415） supported by the National Natural Science Foundation of China; Projects（05JT1026, 2007JT2013） supported by the Science Technology Project of Hunan Province, China |
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| 摘 要： |
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| 关 键 词： | 微乳液 化学分析 电化学 电导率 |
| 收稿时间： | 1 April 2008 |
Electrochemical behavior of K3Fe(CN)6 in water-in-oil microemulsion |
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| Hai-hui Zhou, Wei Zeng, Xiao-fang Ying, Jin-xiang Zeng, Dan Li, Jin-hua Chen and Ya-fei Kuang.Electrochemical behavior of K3Fe(CN)6 in water-in-oil microemulsion[J].Journal of Central South University of Technology,2009,16(1):61-65. |
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| Authors: | Hai-hui Zhou Wei Zeng Xiao-fang Ying Jin-xiang Zeng Dan Li Jin-hua Chen and Ya-fei Kuang |
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| Affiliation: | (1) College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, China |
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| Abstract: | A water-in-oil (W/O) microemulsion composed of Triton X-100, n-hexanol, n-hexane and water solution with hydrochloric acid was prepared. K3Fe(CN)6 was added in as a water-soluble electroactive probe, and its electrochemical behavior was investigated by cyclic voltammetry
(CV) and electrochemical impedance spectroscopy (EIS). It is found that the H+ concentration of the water phase has a great effect on the conductivity of the W/O microemulsion, and hence influences the
electrochemical behavior of K3Fe(CN)6. When the pH value of water phase is about 7, the electrical conductivity of the W/O microemulsion is only 1.2×10−6 S/cm, and K3Fe(CN)6 almost cannot react at the glassy carbon electrode. But when the H+ concentration is more than 3 mol/L, the W/O microemulsion has a good electrical conductivity and K3Fe(CN)6 shows good electrochemical performance in it. The results of CV and EIS studies indicate that the electrochemical behavior
of Fe(CN)6
3−/Fe(CN)6
4− in the W/O microemulsion is different from that in the aqueous solution. This may be due to the unique liquid structure of
the W/O microemulsion and the unique mass transfer in the W/O microemulsion.
Foundation item: Projects(20673036, J0830415) supported by the National Natural Science Foundation of China; Projects(05JT1026, 2007JT2013)
supported by the Science Technology Project of Hunan Province, China |
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| Keywords: | K3Fe(CN)6 electrochemical behavior W/O microemulsion electrical conductivity |
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