【摘要】 由油酸的煤油溶液与NaOH和CTAB两水溶液混合制成O/w型乳液.实验发现,此乳液的加入可使丹尼尔电池产生电池反应与电极反应的明显振荡现象.自发过程结束后,通以2 V,50 Hz或100 Hz交流电4 h,则此电池反应可形成可逆振荡.由表面活性剂对电极表面的吸附和乳液结构变化解释了振荡机理.乳液混合能参与了此电化学反应.更多还原

【Abstract】 An O/W type emulsion was made from mixing of oleic acid kerosene solution, NaOH aqueous and CTAB aqueous. It was found that addition of the emulsion could make some Daniell cells, including Cu-Mg, Cu-Al, Cu-Zn, Cu-Fe cell; produce evident electrochemical oscillations which could last more than 4 h in both cell and electrode reactions. Reversible oscillations in the cell were also found after electrified with 2 V, 50 Hz or 100 Hz alternating current for 4 h. The oscillatory mechanism was explained by the adsorption of surfactant on the surface of electrode and emulsion structure changes according to observe under a microscope. The mixing energy of emulsion take part in the electrochemical reaction.更多还原