Facile synthesis route for bulk production of complex fullerene-like MoS$_2$ nanostructures with enhanced tribological propertiesDrnovšek, Aljaž (Avtor) Vengust, Damjan (Avtor) Šumandl, Patrik (Avtor) Korbar, Domen (Avtor) Mrzel, Aleš (Avtor) Vilfan, Mojca (Avtor) nanotubesnanoparticlessynthesismolybdenumsynthesis designMolybdenum-based nanoparticles are often used as oil additives to enhance a material’s tribological performance. Here, we present a highly efficient synthetic route for the bulk production of two types of MoS$_2$ nanostructures: multi-wall nanotubes and fullerene-like nanostructures. The presented two-step synthesis involves the transformation of ammonium heptamolybdate tetrahydrate and aniline into precursor nanowires, which are later transformed into MoS$_2$ through heating in a H$_2$S, H$_2$, and argon atmosphere to approximately 800 °C. Depending on the heating rate, we successfully grew MoS$_2$ layered compounds in various shapes and sizes. The resulting structures and compositions were characterised by X-ray powder diffraction, Raman spectroscopy, energy-dispersive X-ray spectroscopy, and electron microscopy. To assess the application potential of these MoS$_2$ compounds, they were dispersed in polyalphaolefin (PAO 6) oil. Improved tribological properties were observed compared to typically used transition metal dichalcogenides.20252025-01-17 15:10:48Članek v reviji166603sl