کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
192605 | 459747 | 2009 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Voltammetric, in-situ spectroelectrochemical and in-situ electrocolorimetric characterization of phthalocyanines Voltammetric, in-situ spectroelectrochemical and in-situ electrocolorimetric characterization of phthalocyanines](/preview/png/192605.png)
In this work, electrochemical, and in-situ spectroelectrochemical characterization of the metallophthalocyanines bearing tetra-(1,1-(dicarbethoxy)-2-(2-methylbenzyl))-ethyl 3,10,17,24-tetra chloro groups were performed. Voltammetric and in-situ spectroelectrochemical measurements show that while cobalt phthalocyanine complex gives both metal-based and ring-based redox processes, zinc and copper phthalocyanines show only ring-based reduction and oxidation processes. The redox processes are generally diffusion-controlled, reversible and one-electron transfer processes. Differently lead phthalocyanine demetallized during second oxidation reaction while it was stable during reduction processes. An in-situ electrocolorimetric method, based on the 1931 CIE (Commission Internationale de l’Eclairage) system of colorimetry, has been applied to investigate the color of the electro-generated anionic and cationic forms of the complexes for the first time in this study.
Journal: Electrochimica Acta - Volume 54, Issue 10, 1 April 2009, Pages 2684–2692