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Chem Commun (Camb). 2006 Dec 14;(46):4799-801.

Binary inorganic salt mixtures as high conductivity liquid electrolytes for >100 degrees C fuel cells.

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Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ 85287, USA.


We report the successful application of low-melting inorganic salts with protonated cations (e.g. ammonium) as electrolytes in fuel cells operating in the temperature range 100-200 degrees C, where even with unoptimized electrodes, cell performance is comparable to that of the phosphoric acid fuel cell operating with optimized electrodes in the same temperature range, while open circuit voltages, and efficiencies at low current densities, can be much better--and there is no need for humidification or pressure to sustain performance.

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