NOBLE METAL NANOSTRUCTURE AND ELECTROCHEMICAL REACTOR

摘要

The present invention relates to a microstructured noble metal nanostructure having a multidimensional structure of nanometer size comprising primary particles, which is characterized in that the microstructured noble metal nanostructure has the form of particles with diameters of 1 to 15 nm; the multidimensional structure has a fine wire shape having a wire diameter of 5 to 200 nm, or a protruded structure or convex-and-concave structure having a surface roughness of 5 to 200 nm, or a spherical structure having a diameter of 5 to 200 nm; and these structures are formed in a self-supporting state that does not require a template. The present invention further relates to a process of producing this microstructured noble metal nanostructure and to an electrochemical element, an electrode material, and a member, for example, of a nitrogen oxide conversion reactor.