ELECTROOXIDATION OF 2,4,6-TRICHLOROPHENOL ON GLASSY CARBON ELECTRODES MODIFIED WITH COMPOSITE Ni(OH)2-Co(OH)2 FILMS

Journal of The Chilean Chemical Society

MARCO, JOSÉ F¹  GUTIÉRREZ, C¹  GONZÁLEZ, THAÍS²  SALAZAR, RICARDO²  URETA-ZAÑARTU, M. SOLEDAD² 

[1] Consejo Superior de Investigaciones Científicas, Madrid, Spain;Universidad de Santiago de Chile, Santiago, Chile

关键词: Modified electrodes;    (Ni-;    Co) hydroxides;    chlorophenol oxidation.;   

DOI  :  10.4067/S0717-97072013000400031

学科分类：化学（综合）

来源: Sociedad Chilena de Quimica

【 摘 要 】

Glassy carbon electrodes coatedwith a film of electrodeposited cobalt and nickel hydroxides were prepared inorder to determine its activity to the 2,4,6-trichlorophenol (TCP) oxidation.The modified electrodes were characterized by cyclic voltammetry (CV), electrochemicalimpedance spectroscopy (EIS), X-ray photoelectron spectroscopy and ScanElectron Microscopy (SEM) with Energy Dispersive X-ray Spectroscopy (EDS).The results indicate that both hydroxides are homogeneously distributed in theelectrode surface. From the viewpoint of electrochemical oxidation of TCP, thepresence of cobalt and nickel hydroxides on the electrode surface (i) promotesa more complete oxidation of TCP and (ii) decreases the fouling of the electrodesurface in comparison with GC and GC modified with Ni or Co separately.

【 授权许可】

Unknown