Electrochemical deposition of large-sized mesoporous nickel films using polymeric micelles

Abstract

Stable mesoporous nickel (Ni) films can be prepared using polystyrene-b-poly-(oxyethylene) (PS-b-PEO) micelles as sacrificial templates. In this method, positively charged Ni precursors form hydrogen bonds with the PEO segments of the micelles, which are then co-electrodeposited on the surface of a working electrode. Changing the applied voltage during electrodeposition modifies the deposition rate and ultimately controls the architecture of the mesoporous Ni film.