Abstract
A method for producing electrocatalysts containing silver supported on different carbons was developed. The catalysts were investigated in air (oxygen) diffusion electrodes in alkaline electrolyte (7 M KOH). Depending on the carbon support used, up to a threefold improvement in electrode performance was achieved compared with the activity of the uncatalysed carbon in this media. At ambient temperature and atmospheric pressure, a current density of 150 mA/cm−2 was obtained at electrode potential 1.2 V vs zinc (0.75 vs HE). A correlation between electro catalytic activity and wetted surface area of the electrocatalysts was found.
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Gamburzev, S., Petrov, K. & Appleby, A. Silver–carbon electrocatalyst for air cathodes in alkaline fuel cells. Journal of Applied Electrochemistry 32, 805–809 (2002). https://doi.org/10.1023/A:1020122004048
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DOI: https://doi.org/10.1023/A:1020122004048