Scaling Up of the WS₂Nanotubes Synthesis

Electrical transport properties of individual WS2 nanotubes and their dependence on water and oxygen absorption

“…6,9 WS 2 nanotubes (NTs) were found in 1992 10 and as of recently are produced in substantial quantities. 11 The availability of these nanotubes led to a great interest in studying their mechanical and tribological properties, as well as their applications in lubrication and to reinforce nanocomposites. 12 The layered structure of WS 2 and the few dangling bonds on their van der Waals surface coupled also with their excellent optoelectrical properties make WS 2 NTs potentially a prosperous candidate for next generation electronic and photoelectronic systems.…”

A Nanocomposite of Polyaniline/Inorganic Nanotubes

“…Pure multiwall INT-WS 2 were purchased from NanoMaterials Ltd. (Israel), and synthesized according to a published procedure. [ 31,32 ] The nanotubes were typically 30-100 nm in diameter and 1-20 μ m long comprising approximately 30 WS 2 layers and frequently containing some WO 3-x (tungsten suboxide) in the core. This oxide is a remnant of the incomplete conversion of the tungsten oxide nanowhiskers into the WS 2 nanotubes.…”

Reinforcing silica aerogels with tungsten disulfide nanotubes

“…IF-WS 2 nanoparticles ("industrial grade") are currently produced in large scale and are commercially used as superior solid lubricants for a variety of tribological applications and for polymer reinforcement. Recently, a comprehensive understanding of the growth mechanism for inorganic nanotubes (INT)-WS 2 resulted in pure phase and scaled up synthesis (up to 150 g/day) [11]. The INTs are 1-20 micron long with diameter of 30-150 nm (aspect ratio of 100 and larger).…”