The progress of layered 2Н‑WS₂ nanochemistry opens new prospects for purposeful change of its structural-sensitive properties and multifunctional nanomaterials design: solid, radiation-resistant nanolubricants for space and ground based operation; nanolubricant additives to industrial machine oils and greases; photocatalysis on semiconductor nanoparticles etc.

Inorganic graphene-like nanoparticles 2Н‑WS₂ (layered nanostructures or ultrathin nanosheets) were synthesized by CVD (nanosynthesis “bottom–up”). Layered 2Н‑WS₂ nanoparticles have small thickness (~ 1 nm) as a result of limited layer-by-layer self-assembly of ultrathin nanosheets S–W–S. The thickness quantity of nanosheets S–W–S (in Z axis direct) is4–12by evaluation data.

By use of complex thermal analysis and X-ray investigation of oxidation on the air of layered 2H‑WS₂ nanoparticles it was established that their thermal stability not change virtually (subject to oxygen desorption at 500–1300 К) as against similar value for micron particles. Oxidation of 2Н‑WS₂ nanoparticles occurs with formation of WO₃ and SO₂ (570–1000 К). As a result WO₃ – 2H‑WS₂ heterostructures (“shell – core”) are growing. Their  unit cell parameters correlate with oxidation temperatures.

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