Monolayer TiS₂ Nanosheets on Au(111)-Structural Characterization and Effect of Edge Stability for Shape Control.

ABSTRACT: Transition metal dichalcogenides are promising alternatives to noble metal catalysts, e.g., for (photo-)activation of greenhouse gases or hydrogenations. Herein, a direct synthetic route for 2D TiS₂ nanosheets on Au(111) by titanium deposition in the presence of a mild, organic, non-oxidizing sulfur source is presented. High-resolution scanning tunneling microscopy (STM) is used to gain atomic-level insights into the TiS₂ nanosheet morphology. In contrast to the literature, this protocol gains mostly hexagonal and truncated triangular nanosheets with an increased edge contrast in STM, analog to metallic edge states in MoS₂. Synchrotron-based photoelectron spectroscopy allows insights into compositional details, specifically to distinguish different S sites

SUBMITTER: Kruse N 

PROVIDER: S-EPMC12462570 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature