VS₂ Nanotubes Containing Organic‐Amine Templates from the NT‐VO_x Precursors and Reversible Copper Intercalation in NT‐VS₂

Abstract

Softly, softly: VS2 nanotubes (see electron micrograph, layer separation 1.6 nm) are prepared from vanadium oxide nanotubes by a “chimie douce” process. The VS2 nanotubes are remarkably stable; the corresponding bulk compound is unstable unless it is intercalated with alkali‐metal atoms. The nanotubes reversibly intercalate copper with high capacity and thus could serve as precursors for conductors or contacts in electronic circuitry.

Growth Mechanism and Surface Functionalization of Metal Chalcogenides Nanostructures

“…Figure 5.7 shows TEM and HRTEM images of a partially and a fully sulfidized VS 2 NT with lattice fringes corresponding to a layer separation of approximately 2.8 nm (partially sulfidized) and 1.6 nm (fully sulfidized). These values are significantly larger than the layer separations in bulk VS 2 (0.57 nm) [114].…”

“…Therese et al [170] reversibly intercalated 0.77 equivalents of copper ions in VS 2 -NTs. This corresponds to a specific capacity of 314 mA h/g and is only slightly lower than the theoretical capacity of graphite (372 mA h/g) [171].…”

“…Owing to their unusual geometry and promising physical properties, the study of inorganic layered chalcogenide nanostructures has become one of the key topics in nanoscale research since the first report on WS 2 NTs and fullerenes by Tenne et al in 1992 [2]. Various approaches to other inorganic NTs, such as NiCl 2 [3], VS 2 [4], TiS 2 [5], and InS [6], have also been reported, which implies that many layer compounds may form fullerenes or NTs under favorable conditions. Chalcogenide nanostructures are of interest for a variety of applications ranging from nanotribology, nanoelectronics, or battery materials to the active use in heterogeneous catalysis.…”

Synthesis and functionalization of chalcogenide nanotubes

“…It is not only the spherical nanoparticles and nanorods that can be converted to the corresponding sulfide hollow structures, but the oxide nanotubes with an amine template molecules intercalated between the layers can also be converted to the sulfide nanotubes by retaining their original tubular morphology [96]. The amine intercalated vanadium disulfide nanotubes is the first layered chalcogenide nanotubes in which the organic molecules are intercalated in between the layers.…”

A redox-assisted molecular assembly of molybdenum oxide amine composite nanobelts

“…Recently, the intercalated organic-inorganic hybrid nanomaterials have attracted great attention because of their unique microstructure and potential applications in catalysts, batteries, chemical sensors and field-effect transistors [1][2][3][4]. A large number of organic surfactants can be introduced into interspaces of the layered inorganic materials by an intercalation route, and the intercalated organic-inorganic hybrid materials were formed.…”