Ellipsometric measurements are often extremely sensitive to the presence of very thin surface layers,to changes in their thickness(or coverage),and to changes in surface topography at an atomic scale.These characteris...Ellipsometric measurements are often extremely sensitive to the presence of very thin surface layers,to changes in their thickness(or coverage),and to changes in surface topography at an atomic scale.These characteristics make the use of ellipsometry for electrochemical studies particularly attractive.The ellipsometric studies on electrochemistry and its applications carried out in the Electrochemical Laboratory of Chongqing University are reviewed briefly: 1)The studies on electrochemistry of classical ellipsometry: 2)The new function V op suggested by the authors. 3)The applications of new approcaches with new function V op suggested by the authors.展开更多
Electrochemical reaction between K4[Fe(CN)6] and K3[Fe(CN)6] on glass electrodedeposited with In2O3 was studide with graze ellipsometry combined with cyclic voltammetry. Theresults indicated that graze ellipsometry po...Electrochemical reaction between K4[Fe(CN)6] and K3[Fe(CN)6] on glass electrodedeposited with In2O3 was studide with graze ellipsometry combined with cyclic voltammetry. Theresults indicated that graze ellipsometry possessed not only time-resolved function, but also space-resolved function. Graze ellipsometrical parameters refiected some information of physicochemicalproperties of interface and diffusion layer near the electrode surface. Change of the pattern of thegraze ellipsometric parameters represented change of rules of the physicochemical properties. Andthe rules revealed the order to random situation of the particles’ distribution near the electrodesurface and were helpful to analyze the properties of the diffusion layer reliably.展开更多
On the basis of Oregonator model, the influence of acid on B- Z oscillating reaction is analyzed, the dynamic regime of B- Z reaction with acid value B and model parameter h (the concentration of NaBrO3 is certain), a...On the basis of Oregonator model, the influence of acid on B- Z oscillating reaction is analyzed, the dynamic regime of B- Z reaction with acid value B and model parameter h (the concentration of NaBrO3 is certain), and the time - series plots、 2- D and 3- D phase plots of each component under different acid conditions are given,and also the curves of acid B vs. oscillating period and amplitude.This made the theory of the threshold values of B- Z oscillating reaction more completely. The experimental results proved that the model is correct.展开更多
文摘Ellipsometric measurements are often extremely sensitive to the presence of very thin surface layers,to changes in their thickness(or coverage),and to changes in surface topography at an atomic scale.These characteristics make the use of ellipsometry for electrochemical studies particularly attractive.The ellipsometric studies on electrochemistry and its applications carried out in the Electrochemical Laboratory of Chongqing University are reviewed briefly: 1)The studies on electrochemistry of classical ellipsometry: 2)The new function V op suggested by the authors. 3)The applications of new approcaches with new function V op suggested by the authors.
文摘Electrochemical reaction between K4[Fe(CN)6] and K3[Fe(CN)6] on glass electrodedeposited with In2O3 was studide with graze ellipsometry combined with cyclic voltammetry. Theresults indicated that graze ellipsometry possessed not only time-resolved function, but also space-resolved function. Graze ellipsometrical parameters refiected some information of physicochemicalproperties of interface and diffusion layer near the electrode surface. Change of the pattern of thegraze ellipsometric parameters represented change of rules of the physicochemical properties. Andthe rules revealed the order to random situation of the particles’ distribution near the electrodesurface and were helpful to analyze the properties of the diffusion layer reliably.
文摘On the basis of Oregonator model, the influence of acid on B- Z oscillating reaction is analyzed, the dynamic regime of B- Z reaction with acid value B and model parameter h (the concentration of NaBrO3 is certain), and the time - series plots、 2- D and 3- D phase plots of each component under different acid conditions are given,and also the curves of acid B vs. oscillating period and amplitude.This made the theory of the threshold values of B- Z oscillating reaction more completely. The experimental results proved that the model is correct.
