| http://www.w3.org/ns/prov#value | - These electrode substrates have substantially homogeneous monolayer structures.Such a homogeneous monolayer electrode substrate has, however, demerits such as follows: with a high bulk density of a substrate, there is obtained a low limiting current density due to less diffusion of reactant gases and a rapid deteriorationof performance of a fuel cell due to insufficient storage of electrolyte in t
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