期刊
JOURNAL OF POWER SOURCES
卷 150, 期 -, 页码 27-31出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2005.02.020
关键词
direct alcohol fuel cells; polyhydric alcohol; anion exchange membrane; alkaline fuel cells; silver catalyst
Alkaline direct alcohol fuel cells using an OH-form anion exchange membrane and polyhydric alcohols were studied. A high open circuit voltage of ca. 800 mV was obtained for a cell using Pt-Ru/C (anode) and Pt/C (cathode) at 323 K, which was about 100-200 mV higher than that for a DMFC using Nafion (R). The maximum power densities were in the order of ethylene glycol > glycerol > methanol > erythritol > xylitol. Silver catalysts were used as a cathode catalyst to fabricate alkaline fuel cells, since silver catalyst is almost inactive in the oxidation of polyhydric alcohols. Alkaline direct ethylene glycol fuel cells using silver as a cathode catalyst gave excellent performance because higher concentrations of fuel could be supplied to the anode. (c) 2005 Elsevier B.V. All rights reserved.
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