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电化学过程中的电流或电位振荡现象已有不少记载,并被概括为减幅振荡和周期振荡两种类型,然而新近发现了混沌态、超混沌态以及混合振荡分支系列等一些较复杂的振荡模式。尽管如此,迄今人们对电化学振荡的现象与本质仍然缺乏足够的了解。在甲醛电化学氧化的研究中我们观察到更为奇特的时间有序现象以及不同振荡模式的过渡序列,这些结果将为利用非线性动态学理论研究电极过程机理提供新的信息。
The phenomena of current or potential oscillations in electrochemical processes are well documented and are summarized in two types: descending oscillation and periodic oscillation. However, some more complicated ones such as chaos, hyperchaos and mixed oscillating branches have recently been discovered Oscillation mode. In spite of this, so far there is still a lack of sufficient understanding of the phenomenon and nature of electrochemical oscillations. In the study of formaldehyde electrochemical oxidation, we observed more peculiar temporal order phenomena and transitional sequences of different oscillation modes. These results will provide new information for studying the electrode process mechanism by using nonlinear dynamics theory.