Facile synthesis route for bulk production of complex fullerene-like MoS$_2$ nanostructures with enhanced tribological properties

Drnovšek, Aljaž (avtor), Vengust, Damjan (avtor), Šumandl, Patrik (avtor), Korbar, Domen (avtor), Mrzel, Aleš (avtor), Vilfan, Mojca (avtor)

Molybdenum-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.

• Jezik: Angleški jezik
• Ključne besede: nanotubes, nanoparticles, synthesis, molybdenum, synthesis design
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: NTF - Naravoslovnotehniška fakulteta ; FMF - Fakulteta za matematiko in fiziko
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2025
• Št. strani: 8 str.
• Številčenje: Vol. 90, iss. 1, art. e202400480
• PID: 20.500.12556/RUL-166603
• UDK: 620.1/.2
• ISSN pri članku: 2192-6506
• DOI: 10.1002/cplu.202400480
• COBISS.SI-ID: 214232835
• Datum objave v RUL: 17.01.2025

Gradivo je del revije

• Naslov: ChemPlusChem
• Skrajšan naslov: ChemPlusChem
• Založnik: Wiley, Chemistry Europe
• ISSN: 2192-6506
• COBISS.SI-ID: 2732539

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: nanocevke, sinteza, nanodelci, molibden