Journal
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
Volume 9, Issue 12, Pages 6910-6923Publisher
ESG
Keywords
glycerin; potential sweep; controlled potential; anodic oxidation; platinum electrode
Categories
Funding
- European Regional Development Fund under the Project CEBIA-Tech [CZ.1.05/2.1.00/03.0089]
- Tomas Bata University Internal Grant [IGA/FAI/2014/011/]
- National Council of Science and Technology (CONACYT) in Mexico [214734]
- Tomas Bata University in Zlin
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In this study, potential sweep technique and controlled potential electrolysis were used to analyze the electrochemical oxidation of glycerin in a three electrode system using platinum as a working electrode. Electrochemical experiments were performed at different concentrations of glycerin and manganese dioxide (0.015-0.124 M) to analyze the reaction order of reactant and oxidant. Voltammograms were studied at different positive and negative potential limits (-1.5 to 1.5 V vs Ag/AgCl), sweep rates (0.01 to 0.08 V/s) and temperatures (27 to 60 degrees C). The influence of each parameter on the voltammogram shape is discussed. Prolonged electrolysis at controlled potential yield glyceraldehyde, glyceric acid and glycolid acid as the main products.
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