| Study on the oscillating phenomena of electrical potential across a liquid membrane |
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| 作者姓名： | Jin Zhang Gao Hong Xia Dai Hua Chen Jie Ren Wu Yang |
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| 作者单位： | Chemistry ＆ Chemical Engineering College, Northwest Normal University, Lanzhou 730070, China |
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| 基金项目： | Acknowledgments This work was supported by the International Cooperation Project between China and Ukraine （043-05） and the project of KJCXGC-01 of Northwest Normal University and Gansu Key Lab. of Polymer Materials, China. |
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| 摘 要： | The electrical oscillations across a liquid membrane in water/oil/water system was studied with octanol as oil phase by introducing two opposite charged surfactants in oil and aqueous phase, respectively. The sustained and rhythmic oscillation was observed. To a certain extent, the features of the oscillation (e.g. induction time, frequency, life time and orientation of the pulse pikes) strongly depend on the property of surfactant, dissolved in octanol. The mechanism may be explained by the formation and destruction of dual-ion surfactant membrane accompanying with emulsification at the interface and considering the coupling effect of diffusion and associated reaction in the vicinity of the interface.
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| 关 键 词： | 液膜 电位 化学振荡现象 电子振荡 表面活性剂 |
| 收稿时间： | 2006-06-27 |
Study on the oscillating phenomena of electrical potential across a liquid membrane |
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| Jin Zhang Gao Hong Xia Dai Hua Chen Jie Ren Wu Yang.Study on the oscillating phenomena of electrical potential across a liquid membrane[J].Chinese Chemical Letters,2007,18(3):309-312. |
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| Authors: | Jin Zhang Gao Hong Xia Dai Hua Chen Jie Ren Wu Yang |
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| Institution: | Chemistry & Chemical Engineering College, Northwest Normal University, Lanzhou 730070, China |
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| Abstract: | The electrical oscillations across a liquid membrane in water/oil/water system was studied with octanol as oil phase by introducing two opposite charged surfactants in oil and aqueous phase, respectively. The sustained and rhythmic oscillation was observed. To a certain extent, the features of the oscillation (e.g. induction time, frequency, life time and orientation of the pulse pikes) strongly depend on the property of surfactant, dissolved in octanol. The mechanism may be explained by the formation and destruction of dual-ion surfactant membrane accompanying with emulsification at the interface and considering the coupling effect of diffusion and associated reaction in the vicinity of the interface. |
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| Keywords: | Liquid membrane Chemical oscillation Electrical potential Surfactant |
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