Abstract
The controllable preparation of Two-dimensional transition metal chalcogenides (TMDCs) is very important. However, the uncontrollable growth of SnS2 by chemical vapor deposition (CVD) and the unsatisfactory performance of hydrogen evolution reaction (HER) based on SnS2 have hindered its applications. Herein, we reported the direct synthesis of high-quality 1T-SnS2 with various morphologies via potassium iodide-assisted CVD. On the basis of CVD technology, We have developed process technology to grow different shapes of SnS2 from dot line to fishbone controlled by growth conditions. The growth mechanism of SnS2 was studied, and their HER performance with different morphologies of SnS2 was investigated. The growth trend of 2D SnS2 provides a reference for the controllable preparation of TMDCs materials. These results demonstrate that TMDCs can adjust the performance of HER through shape control.
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