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A theoretical analysis and its application of the second order EC' reactions at microelectrodes under steady-state conditions

A theoretical analysis and its application of the second order EC' reactions at microelectrodes under steady-state conditions
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摘要 With a new approach,the general current expressions of two typical second order catalytic reactions are obtained for disk,hemispherical and spherical microelectrodes under steady-state conditions.This approach is based on the concept of reaction layer.For the second order EC' reactions,we also discussed how it is possible to observe pseudo-first order or second order behavior.This consideration allows the study of the fast chemical reactions and systems where the bulk concentrations of the reactants are nearly equal.Regeneration of Fe^(3+)(EDTA) with H_2O_2 was selected as an example of a rapid catalytic reaction. With a new approach,the general current expressions of two typical second order catalytic reactions are obtained for disk,hemispherical and spherical microelectrodes under steady-state conditions.This approach is based on the concept of reaction layer.For the second order EC' reactions,we also discussed how it is possible to observe pseudo-first order or second order behavior.This consideration allows the study of the fast chemical reactions and systems where the bulk concentrations of the reactants are nearly equal.Regeneration of Fe^(3+)(EDTA) with H_2O_2 was selected as an example of a rapid catalytic reaction.
出处 《Chinese Journal of Chemistry》 SCIE CAS CSCD 1993年第4期308-315,共8页 中国化学(英文版)
基金 Project supported by the National Natural Science Foundation of ChinaChangchun Institute of Applied Chemistry of Chinese Academy of Sciences.
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