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Low-Temperature Synthesis Strategy for MoS<sub>2</sub> Slabs Supported on TiO<sub>2</sub>(110)
oleh: Mahesh K. Prabhu, Irene M. N. Groot
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2020-11-01 |
Deskripsi
MoS<sub>2</sub> supported on oxides like TiO<sub>2</sub> has a broad range of applications. The atomic structure of this system is therefore very useful to study. Previous research work in this area has made use of high-temperature synthesis methods, while the preparation of an MoS<sub>2</sub>/TiO<sub>2</sub> in very important applications, such as catalysis, makes use of a low-temperature synthesis method. In this work, we investigate a low-temperature synthesis strategy for MoS<sub>2</sub> slabs supported on rutile TiO<sub>2</sub>(110). Using scanning tunneling microscopy and X-ray photoelectron spectroscopy, we demonstrate that not only flat MoS<sub>2</sub> slabs with irregular shapes but also MoS<sub>x</sub> stripes with a large number of coordinatively unsaturated Mo atoms are formed. In particular, it becomes evident that, for atomic structural characterization of MoS<sub>2</sub>/TiO<sub>2</sub> and similar oxide-supported systems grown by low-temperature synthesis methods, the surface structure of the support becomes highly relevant.