Abstract: A porous resin article having a three-dimensional network structure is used. A resin molded body at least the surface of which has been subjected to conductive treatment is plated with aluminum in a molten salt bath to form an aluminum structure, thus forming a porous aluminum that includes an aluminum layer having a thickness in the range of 1 to 100 ?m, has an aluminum purity of 98.0% or more and a carbon content of 1.0% or more and 2% or less, and contains inevitable impurities as the balance. Even with a porous resin molded body having a three-dimensional network structure, this allows the surface of the porous resin molded body to be plated with aluminum, thus forming a high-purity aluminum structure having a uniform thick film.

Abstract: A porous metal body containing continuous pores and having a low oxygen content is provided by decomposing a porous resin body that contains continuous pores and has a layer of a metal thereon by heating the porous resin body at a temperature equal to or less than the melting point of the metal while the porous resin body is immersed in a first molten salt and a negative potential is applied to the metal layer; and a method for producing the porous metal body is provided.