Calcium-Doped Y114 Layered Cobalt Perovskite, a Promising Anodic Material for Direct Methanol Fuel Cell

Abstract:

In this paper, calcium doped cobalt layered perovskite type 114 electrode electrocatalytic activity for methanol oxidation reaction (MOR) in aqueous alkaline solution (1 M KOH) has been investigated in order to find the relationship between methanol concentration in the solution and oxidation potential, current density, and oxidation efficiency. For a complete characterization of MOR on this electrode, several electrochemical methods were used: chronoamperometry, chronopotentiometry, chronocoulometry. Also, in order to understand the oxidation mechanism, kinetic parameters were determined using Tafel method and electrochemical impedance spectroscopy (EIS) was performed. MOR on layered cobalt perovskite electrodes becomes a serious issue, especially due to their use as anode in alkaline fuel cells.

• Periodical: Advanced Engineering Forum (Volume 27)
• Pages: 63-73
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.27.63
• Online since: April 2018
• Authors: Victor Daniel Craia-Joldes, Mircea Laurentiu Dan*, Delia Andrada Duca, Nicolae Vaszilcsin
• Keywords: Chrono-Electrochemical Methods, Cobalt Layered Perovskite, Methanol Electrooxidation

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