| http://www.w3.org/ns/prov#value | - It can be estimated from this fact that transition metals used in the Experimental Examples of the present invention are affected more by the grain diameters of the transition metals rather than by the activity of the transition metals themselves. [0136] With respect to the spillover effects, where a container including steel, such as SUS304, is used during activation of carbon with KOH, the KOH a
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