Abstract
The direct carbon fuel cell technology provides excellent conditions for
conversion of chemical energy of carbon-containing solid fuels directly
into electricity. The technology is very promising since it is relatively
simple compared to other fuel cell technologies and accepts all
carbon-reach substances as possible fuels. Furthermore, it makes possible
to use atmospheric oxygen as the oxidizer. In this paper the results of
authors' recent investigations focused on analysis of the performance of a
direct carbon fuel cell supplied with graphite, granulated carbonized
biomass (biocarbon), and granulated hard coal are presented. The
comparison of the voltage-current characteristics indicated that the
results obtained for the case when the cell was operated with carbonized
biomass and hard coal were much more promising than those obtained for
graphite. The effects of fuel type and the surface area of the cathode on
operation performance of the fuel cell were also discussed.
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