The Fabrication of Nanoporous Metals (Au, Cu, Pd) and Their Application in Heterogeneous Molecular Transformations -- Nanoporous Copper Metal Catalyst in Click Chemistry: Nanoporosity Dependent Activity without Supports and Bases -- Nanoporous Gold Catalyst for Highly Selective Semihydrogenation of Alkynes: Remarkable Effect of Amine Additives -- Unsupported Nanoporous Gold Catalyst for Highly Selective Hydrogenation of Quinolines.