含钼碱性电解液中小分子醇在铂黑电极上氧化时的周期性及非周期性振荡  

Periodic and Aperiodic Oscillation of Cyclic Voltammetric\= Responses of Oxidition of Alcohol at Platinized Platinum\= Electrode in Alkaline Medium with Na\-2MoO\-4

作　　者：傅宏刚[1] 于海涛[1] 王俊东[1] 陈旭[1] 徐善鹏[1] 黄菊英[2] 

机构地区：[1]黑龙江大学化学化工学院 [2]哈尔滨工业大学

出　　处：《高等学校化学学报》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

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.

关 键 词：电化学振荡 混沌 乙醇 甲醇 氧化 铂黑电极 

分 类 号：O623.411[理学—有机化学] O646.54[理学—化学]