摘要
乙醇和甲醇在含钼碱性溶液中的铂黑电极上氧化时，在一定条件下可得到循环伏安曲线的周期性及非周期性振荡．通过微调下限电位可控制振荡的周期，其中非周期性振荡具有混沌的特性．讨论了钼的存在及碱浓度的变化对振荡的影响．结果表明。
A variety of nonlinear phenomena, which was observed during the electrochemical \{oxidation\} of ethanol and methanol at a platinized platinum electrode, is described. The cyclic voltammetric responses of ethanol and methanol that are oxidized at a platinized platinum working electrode in alkaline medium with Na\-2MoO\-4 show the periodic and aperiodic cyclic voltammetric oscillatory behavior. The periodic and aperiodic cyclic voltammetric oscillatory responses were obtained under given experiment conditions. The period of oscillation can be controlled by changing little low potential limit. The alkalinity has an important effect on the oscillation. The periodic oscillations appear when the concentration of ethanol vary between 0\^5 mol/L and 1\^0 mol/L and the solution contain Na\-2MoO\-4. Without Na\-2MoO\-4 in the solution, the oscillation doesnt \{appear\} in such an alkalinity. The periodic and aperiodic oscillation have the properties of chaos. We consider that the nonlinear behavior is the surface.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第3期445-449,共5页
Chemical Journal of Chinese Universities
基金
黑龙江省自然科学基金
关键词
电化学振荡
混沌
乙醇
甲醇
氧化
铂黑电极
Electrochemical oscillation
Chaos
Nonlinearityresult that the oxidation of ethanol coupled with oxidation and reduction of Mo on the electrode
