Three-Dimensional Interstitial Nanovoid of Nanoparticulate Pt Film Electroplated from Reverse Micelle Solution

A new method to fabricate a 3D nanoporous Pt film via electrochemical deposition was proposed. The 3D nanoporous Pt film was successfully obtained by electroplating Pt in a reverse micelle solution of a nonionic surfactant. TEM images showed crystalline Pt nanoparticles (∼3 nm in diameter) and 3D interstitial pores (1−2 nm in width).