Font Size: a A A

Intermittent Electrochemical Oscillation Of Slow Manifold In Complicated Electrochemical Reaction Systems

Posted on:2007-04-08Degree:MasterType:Thesis
Country:ChinaCandidate:D H ZhongFull Text:PDF
GTID:2121360185494045Subject:Physical chemistry
Abstract/Summary:PDF Full Text Request
As well known, the electrochemical reaction systems are complicated dynamic systems governed by a plenty of nonlinear mechanisms. Along with the development of non-linear science and the related experimental technology, the study of the oscillation phenomena and chaotic behaviors for the electrochemical reaction systems has gradually tended to be active and formed a new branch of the modern electrochemistry. There exist sufficient reaction steps to satisfy the condition of oscillation behaviors in electrochemical reaction systems. Moreover in such systems it is easy to control the non-equilibrium constraints and accurate to measure it directly related to instrument. So that the electrochemical reaction systems have been becoming one of important research fields for the chemical oscillation. However, owing to the complexity of electrochemical oscillation, it now remains to be a field of experimental studies. The quantitative theoretical research is seldom to find in literature.Usually, the state variables of the electrochemical oscillation systems, such as concentrations of intermediate, temperature, current, potential, etc, are related each other, the dynamic behaviors of such systems is characteristic of high dimensional evolution. For lacking of quantitative criterion to specify the high dimensional (over three) dynamic behaviors, some state variables are always neglected to simplify the analysis. In fact, if the time scale of the slow variables is extremely large than the others, we can reasonably analyze the behaviors of complicated electrochemical reaction systems at separate levels, and then the dynamical systems could be reduced to three dimensional. In such case, it's possible to study theoretically the complicated...
Keywords/Search Tags:slow manifold analysis, platinum electrode BZ reaction system, potentiostatic copper electrode dissolution system, torus-like oscillation, intermittent electrochemical oscillation
PDF Full Text Request
Related items