Direct-Alcohol SOFCs: Current-Voltage Characteristics and Fuel Gas Compositions
- 1 January 2004
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 151 (7), A965-A970
- https://doi.org/10.1149/1.1756884
Abstract
Power generation characteristics of solid oxide fuel cells (SOFCs) for alcohol-based fuels are measured and compared with those for simulated reformed gas in equilibrium compositions. We demonstrate direct-alcohol SOFCs for methanol, ethanol, propanol, and butanol. Current-voltage characteristics for the methanol-based fuel are comparable to those for the simulated reformed gas at 1000°C because of fast kinetics for thermal decomposition of methanol with H2O.H2O. With increasing carbon number of alcohols and/or with decreasing operational temperature of SOFCs, a decrease in cell voltage is observed associated with slower decomposition and/or reforming kinetics of alcohols. © 2004 The Electrochemical Society. All rights reserved.Keywords
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