We fabricated and characterized one- and two- dimensional nanoscale arrays of platinum for study of model catalysts.
One-dimensional arrays of nanoscale facets were fabricated by annealing a high-index plan of platinum single crystals.
The high-index plane forms rows of alternating two low-index facets, (111) and (100), widths of which are ~10
nanometers. Two-dimensional arrays were fabricated lithographically from the epitaxial films of platinum grown on
SrTiO3 substrates. Electron beam lithography was used to create precisely registered square arrays of millions of
identical platinum nanocrystals with ~30 nm in diameter.