The oxidation of NaBH₄ on electrochemicaly treated silver electrodes
By Sanli, Elif; Uysal, Bekir Zühtü & Aksu, Mehmet Levent
Published in International Journal of Hydrogen Energy
NULL
2008
Abstract
This study is related to the development of suitable anode material for the direct borohyride fuel cells (DBFCs). The effect of electroactive Ag oxides upon the oxidation of NaBH₄ was investigated. The treatment of Ag surface with H₂O₂ gave a granulated compact layer which was observed to give a very high current density and good reversibility at lower concentration compared with the electrode treated with NaOH which resulted a fibrous layer with a lower electrocatalytic effect. The mode of surface oxidation was found to have a profound effect upon the behavior of the electrode. It was also observed that there is an optimum NaBH₄ concentration to obtain the maximum current density.
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