CO Oxidation Facilitated by Robust Surface States on Au-Covered Topological Insulators
CO Oxidation Facilitated by Robust Surface States on Au-Covered Topological Insulators
Surface states--the electronic states emerging as a solid material terminates at a surface--are usually vulnerable to contaminations and defects. The robust topological surface state(s) (TSS) on the three-dimensional topological insulators provide a perfect platform for exploiting surface states in less stringent environments. Employing first-principles density functional theory calculations, we demonstrate …