Electrochemical Behavior of Ethanol Oxidation on a Ti / Ru0.3Ti ( 0.7 − x ) Sn x O 2 Electrode The Role of Experimental Parameters in the Selectivity of the Products

作者: Juliane Cristina Forti , Paulo Olivi , Adalgisa R. de Andrade

DOI: 10.1149/1.1556037

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摘要: The electrocatalytic oxidation of ethanol on Ti/Ru 0.3 Ti (0.7-x) Sn x O 2 electrodes has been carried out in acidic medium ( HClO 4 ) with the aim to investigate selectivity ternary oxides oxidation. cyclic voltammetry pattern and electrolysis results presence are closely related electrode coating preparation method composition. A standard gives an peak located 200 mV before oxygen evolution reaction (OER), whereas prepared by a polymeric precursor showed negative displacement OER leading total suppression peak. global catalytic activity for is amount tin oxide introduced into where higher amounts lead faster consumption. galvanostatic show that 0.2 mol dm -3 major product acetic acid 1.0 3 solution, main acetaldehyde. following sequence toward consumption observed at low acidity medium: 0.7 , 0.4 » .

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