Probing on crystallographic structural and surface morphology of hydrothermally synthesized MoS2 nanoflowers consisting of nanosheets

• Main Authors: Naveen Kumar, Piyush Siroha, Yashpal Sharma, Davender Singh, Kajal Kumar Dey, Rajesh Kumar, Hitesh Borkar, Jitendra Gangwar
• Format: Article
• Language: English
• Published: Elsevier 2021-12-01
• Series: Applied Surface Science Advances
• Subjects: Molybdenum disulfide; Nanoflowers; Nanosheets; Hydrothermal; Structural model; Electron microscopy
• Online Access: http://www.sciencedirect.com/science/article/pii/S2666523921001136

Hydrothermally synthesized MoS2 were obtained and their morphological characteristics were ascertained via electron microscopy. Field emission scanning electron microscope (FESEM) micrographs revealed the formation of nano-flowers by accumulation of nanosheets. The Transmission electron microscopy (TEM) revealed the nanosheets to be of ∼100 nm length and ∼5 nm in edge width. X-ray diffraction pattern analysis showed the formation of 2H polymorph of MoS2, having a long range stacking of about 14 (002) lattice planes in a single crystallite. The Fourier transform infrared (FT-IR) spectroscopic analysis revealed the presence of bridging S22− ligands. Energy dispersive spectroscopy (EDS) analysis associated with the SEM indicates the presence of no other elements except Mo and S in the material. Visualization of atomic structural model and intense lattice plane has been carried out and correlated with crystallographic results. Such findings can be considered as important precursors in both experimental elementary aspects and theoretical approach towards the application-oriented research for crystallographic analysis of nanostructures.