Solid oxide fuel cell  From Wikipedia, the free encyclopedia
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solid oxide fuel cell (SOFC) is an electrochemical conversion
device that produces electricity directly from oxidizing a fuel.
Fuel cells are characterized by their electrolyte material; the
SOFC has a solid oxide or ceramic, electrolyte. Advantages of
this class of fuel cells include high efficiency, long-term
stability, fuel flexibility, low emissions, and relatively low
cost. The largest disadvantage is the high operating temperature
which results in longer start-up times and mechanical and
chemical compatibility issues.   Solid oxide fuel cells are a
class of fuel cells characterized by the use of a solid oxide
material as the electrolyte. SOFCs use a solid oxide electrolyte
to conduct negative oxygen ions from the cathode to the anode.
The electrochemical oxidation of the oxygen ions with hydrogen
or carbon monoxide thus occurs on the anode side. More recently,
proton-conducting S