Tungsten disulfide is an inorganic compound with layer structure. Nanoparticles of WS₂ were found to be excellent candidates for reinforcing various polymer materials. However, long storage times in ambient conditions lead to sorption of water molecules and slow oxidation of defect sites. In the present study, the influence of various treatments on the surface composition and reactivity of several kinds of WS₂ nanoparticles, were investigated. This study reveals some complex interplay between water and organic moieties desorption and the subsequent oxidation of “nascant” surfaces. Remarkably, simple immersion in HF solution seems to produce the ultimately cleanest surface of these particles.

二硫化钨是一种具有层状结构的无机化合物。发现WS _2的纳米粒子是增强各种聚合物材料的极佳候选者。然而，在环境条件下的长时间存储会导致水分子的吸附和缺陷部位的缓慢氧化。在本研究中，研究了各种处理对几种WS ₂纳米颗粒的表面组成和反应性的影响。这项研究揭示了水和有机部分解吸与随后的“ nascant”表面氧化之间的复杂相互作用。值得注意的是，将其简单地浸入HF溶液中似乎可以产生这些颗粒的最终最清洁的表面。