. . . . . "Candidate materials include, but are not limited to, sintered metal or other porous forms of metal or metal alloys, such as the reticulated metal foam manufactured by Energy Research and Generation, Inc. (ERG), of Oakland, Calif., under the trade name DUOCELL???, or such as the metal foams provided by Porvair Advanced Materials, Inc. (Porvair), of Hendersonville, N.C. In one possible means for cre" .