Alkaline direct alcohol fuel cells |
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Authors: | E. Antolini E.R. Gonzalez |
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Affiliation: | a Scuola di Scienza dei Materiali, Via 25 aprile 22, 16016 Cogoleto, Genova, Italy b Instituto de Química de São Carlos, USP, C. P. 780, São Carlos, SP 13560-970, Brazil |
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Abstract: | The faster kinetics of the alcohol oxidation and oxygen reduction reactions in alkaline direct alcohol fuel cells (ADAFCs), opening up the possibility of using less expensive metal catalysts, as silver, nickel and palladium, makes the alkaline direct alcohol fuel cell a potentially low cost technology compared to acid direct alcohol fuel cell technology, which employs platinum catalysts. A boost in the research regarding alkaline fuel cells, fuelled with hydrogen or alcohols, was due to the development of alkaline anion-exchange membranes, which allows the overcoming of the problem of the progressive carbonation of the alkaline electrolyte. This paper presents an overview of catalysts and membranes for ADAFCs, and of testing of ADAFCs, fuelled with methanol, ethanol and ethylene glycol, formed by these materials. |
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Keywords: | Alcohol oxidation Oxygen reduction Anion-exchange membranes Direct alcohol fuel cells Electrocatalysts |
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