Coherence and coupling during oscillatory metal electrodissolution

振荡金属电溶解过程中的相干性和耦合

• 批准号: 11450324
• 负责人: NAKABAYASHI Seiichiro
• 金额: $ 9.15万
• 依托单位: Saitama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11450324/
• 关键词: non-linear; chaos; electrochemistry; coupling; coherence; oscillations; anodic metal dissolution; phase locking

The spatio-temporal behavior during periodic current oscillations in the Fe|H_2SO_4 system is studied for a one-dimensional electrode surface. It is found that during the oscillatory response the electrode surface is never in the same state at the same time but the surface potential forms an accelerating front. The mode of communication between the individual regions of the reacting surface is explored by dividing the system into two identical coupled oscillators. The response is studied by either dividing the electrode surface with an insulating film of infinitesimal thickness or by a physical partition. The behavior of the coupled oscillators can be simple in-phase synchronization, k/n phase locking, out-of-phase locking or complex, depending on the length of the insulating film or the use of the partition and the applied potential. The results are compared with a model considering a simple coupling through the electrode potentials of the single oscillators. It is proposed that the coupling patterns can be attributed to the electrical coupling and the distribution of the frequency of the individual oscillators.

研究了一维电极表面的 Fe|H_2SO_4 系统中周期性电流振荡期间的时空行为。研究发现，在振荡响应期间，电极表面永远不会同时处于相同状态，但表面电势形成加速前沿。通过将系统分为两个相同的耦合振荡器来探索反应表面各个区域之间的通信模式。通过用无限小厚度的绝缘膜或物理分区划分电极表面来研究响应。耦合振荡器的行为可以是简单的同相同步、k/n 锁相、异相锁定或复杂的，具体取决于绝缘膜的长度或隔板的使用和施加的电势。将结果与考虑通过单个振荡器的电极电势的简单耦合的模型进行比较。提出耦合模式可归因于电耦合和各个振荡器的频率分布。

项目成果

Y.Shiomi,A.Karantonis and S.Nakabayashi: "Spatio-temporal Forcing on Electrochemical Oscillator/Exitator"PCCP. 3. 479-488 (2001)

Y.Shiomi、A.Karantonis 和 S.Nakabayashi：“电化学振荡器/激励器的时空强迫”PCCP。

A.Karantonis and S.Nakabayashi: "Electrochemical Oscillations in a Hallow Cylinder : Spatiotemporal Response"Electrochem.Acta.. 46. 745-757 (2000)

A.Karantonis 和 S.Nakabayashi：“空心圆柱体中的电化学振荡：时空响应”Electrochem.Acta.. 46. 745-757 (2000)

A.Karantonis,Y.Shiomi and S.Nakabayashi: "Laser Experiments and Theoretical Modeling for the piagrosis of Bifurcation Sequences of an Oscillating Electrode Reaction"J.Bitrcations and chaos.

A.Karantonis、Y.Shiomi 和 S.Nakabayashi：“振荡电极反应分叉序列的激光实验和理论建模”J.Bittrations 和混沌。

A.Karantonis,Y.Shiomi and S.Nakabayashi: "Coherence and Coupling during Oscillatory Electrodissolution."J.Electroanal.Chem.. 493. 57-67 (2000)

A.Karantonis、Y.Shiomi 和 S.Nakabayashi：“振荡电溶解过程中的相干性和耦合。”J.Electroanal.Chem.. 493. 57-67 (2000)

N. Ohta, S. Nakabayashi and A. Fujishima: "Surface Trausition Kinetics on Syuthetie Metallic Electrode"Chem. Lett.. 1147-1148 (1999)

N. Ohta、S. Nakabayashi 和 A. Fujishima：“Syuthetie 金属电极上的表面损伤动力学”Chem。