On the Benign One-Pot Preparation of Nanoporous Copper Thin Films with Bimodal Chan-nel Size Distributions by Chemical Dealloying in an Alkaline Solution

Abstract

Nanoporous copper (NPC) thin films with bimodal channel size distributions can be benignly fabricated by one-pot chemical dealloying of dual-phase Al 27 at  Cu alloy with hypereutectic structure in the NaOH solution. The microstructure of these NPC thin films was characterized using X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis. The results show that these NPC thin films are composed of interconnected large-sized channels (100s of nm) with highly porous channel walls (10s of nm), in which large-sized channels resulting from entire dissolution of solid solution while small-sized those de-riving from part corrosion of intermetallics. Both large- and small-sized channels are 3D, open, and bicon-tinuous. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35204