Citation: 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. doi: 10.1016/j.cclet.2006.12.025 shu

Study on the oscillating phenomena of electrical potential across a liquid membrane

Chemistry & Chemical Engineering College, Northwest Normal University, Lanzhou 730070, China

Received Date: 29 June 2006

Fund Project: 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.

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.
- Liquid membrane,
- Chemical oscillation,
- Electrical potential,
- Surfactant
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