Two-Dimensional Iron Tungstate: A Ternary Oxide Layer With Honeycomb Geometry.

ABSTRACT: The exceptional physical properties of graphene have sparked tremendous interests toward two-dimensional (2D) materials with honeycomb structure. We report here the successful fabrication of 2D iron tungstate (FeWO _x ) layers with honeycomb geometry on a Pt(111) surface, using the solid-state reaction of (WO₃)₃ clusters with a FeO(111) monolayer on Pt(111). The formation process and the atomic structure of two commensurate FeWO _x phases, with (2 × 2) and (6 × 6) periodicities, have been characterized experimentally by combination of scanning tunneling microscopy (STM), low-energy electron diffraction (LEED), X-ray photoelectron spectroscopy (XPS), and temperature-programmed desorption (TPD) and understood theoretically by density fu

SUBMITTER: Pomp S 

PROVIDER: S-EPMC4838946 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature