Electrochemical behavior of silver-impregnated Al-pillared smectite in alkaline solution
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Milutinović Nikolić, Aleksandra
Jovanović, Dušan M.
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In order to enhance silver effectiveness for oxygen reduction reaction, pillared clay was used as a support for silver nanodispersion. Silver particles incorporation into pillared clay pores was attempted by impregnation/thermal degradation technique. X-ray diffraction as well as adsorption-desorption isotherms confirmed that pillaring procedure was successful. Scanning electron microscopy evidenced that a part of silver appeared outside the pillared clay cavities. Ag-pillared clay composite homogenized with 10 wt.% of nanodispersed carbon black (Vulcan), was applied on a flat glassy carbon surface and used as an electrode material. Oxygen reduction reaction was investigated in an O(2)-saturated aqueous 0.1 M NaOH solution.
Keywords:Clays / Electrochemistry / Silver / Oxygen reduction
Source:Journal of Solid State Electrochemistry, 2010, 14, 9, 1621-1627
- Springer, New York
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