Title of article
Electrochemical Behaviour of Ni and Ni-PVC Electrodes for the Electroxidation of Ethanol
Author/Authors
Hamdan, MOHD SYAFIQ Universiti Kebangsaan Malaysia - School of Chemical Sciences and Food Technology ,Faculty of Science and Technology, Malaysia , Nordin, NORAZZIZI Universiti Kebangsaan Malaysia - School of Chemical Sciences and Food Technology ,Faculty of Science and Technology, Malaysia , Mohd Amir, SITI FATHRITA Universiti Kebangsaan Malaysia - School of Chemical Sciences and Food Technology ,Faculty of Science and Technology, Malaysia , Othman, MOHAMED ROZALI Universiti Kebangsaan Malaysia - School of Chemical Sciences and Food Technology ,Faculty of Science and Technology, Malaysia , Riyanto Universitas Islam Indonesia Yogyakarta, Indonesia
From page
1421
To page
1427
Abstract
In this study, two nickel based electrodes were prepared; nickel foil and nickel-polyvinylchloride (Ni-PVC), in order to study their electrochemical behavior using cyclic voltammetry, CV and chronocoulometry, CC. Ni electrode was prepared from Ni metal foil while Ni-PVC electrode was prepared by mixing a weighed portion of Ni powder and PVC in THF solvent, swirled until the suspension was homogeneous and drying the suspension in an oven at 50oC for 3 h. The dry sample was then placed in a 1 cm diameter stainless steel mould and pressed at 10 ton/cm2. From CV data, Ni-PVC electrode showed a better electrochemical behavior compared to Ni metal foil electrode. The use of Ni-PVC electrode at higher concentration of supporting electrolyte (1.0 M KOH) was better than at lower concentration of the same supporting electrolyte in electroxidation of ethanol. In addition to acetic acid, the oxidation of ethanol also produced ethyl acetate and acetaldehyde.
Keywords
Acetic acid yield , chronocoulometry , cyclic voltammetry
Record number
2555225
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