Nanowire templated CVD synthesis and morphological control of MoS₂ nanotubes

Abstract

A nanowire templated CVD synthesis of MoS2 NTs was developed where morphological control was also achieved.

Novel Nanofluidic Cells Based on Nanowires and Nanotubes for Advanced Chemical and Bio-Sensing Applications

“…Some deposition methods for the shell formation were developed to obtain a robust and clean crystal surface, which does not require a large volume of water or solvent, nor large energy and time. For example, high-quality few-layer molybdenum sulfide (MoS 2 ) nanotubes with good morphology control were synthesized by combining the nanowire template with the CVD process [ 49 ]. As shown in Figure 3 a, SiO 2 NWs prepared and dispersed on silicon substrates are used as templates for depositing a thin film of MoS 2 .…”

“… ( a ) Schematic illustration of MoS 2 nanotube synthesis [ 49 ]; ( b ) schematic illustration of preparation of SiO 2 nanotubes from Si nanowires on a SOI substrate [ 52 ]; ( c ) reaction schematic of the conversion of GaAs nanowires into single-crystalline γ-Ga 2 S 3 nanotubes [ 53 ]; ( d ) schematic illustration of the fabrication of FeN x modified CNT using ZnO nanowire template [ 55 ]. …”

Direct-Chemical Vapor Deposition-Enabled Graphene for Emerging Energy Storage: Versatility, Essentiality, and Possibility

“…Despite fruitful progress achieved in the rational design of multifarious nanomaterials (e.g., metal compounds and their heterostructures, single-atom catalysts, metal organic frameworks, and covalent organic frameworks), the main issues lie in their poor conductivity and thus-derived inferior sulfur utilization. − To this end, direct-CVD-enabled graphene harnessing good electrical conductivity has showcased potential for modifying the pristine separator, thereby elevating sulfur utilization and boosting redox kinetics. In addition, templated synthesis of graphene via the direct-CVD technique can readily customize a variety of delicate microcosmic morphologies, − which can help immobilize polysulfide intermediates and further expedite their conversion reactions.…”

Nanotubes from Two-Dimensional Materials in Contemporary Energy Research: Historical and Perspective Outlook

“…Consequently, hollow cages of layered MoS 2 (WS 2 ) suffer from a large strain, which is partially compensated by having fullerene-like structures and nanotubes made of multiple layers. , Furthermore, the strain in the multiwall structure of such IF nanoparticles is partially relieved by having many defects in their structure, especially in the cusps where the layers fold in acute angles (see Figure d). The smallest size fullerene-like MoS 2 nanoparticle was shown to be a hollow octahedron two layers thick made of about 600 Mo atoms in its inner layer and ∼3 nm in diameter (Figure c). , The synthesis of TMDC nanotubes and fullerene-like nanoparticles has witnessed noteworthy progress in recent years (for example, see refs − ). In what follows, this Focus Review discusses examples for the use of curved (seamless) nanostructures of 2D materials for achieving high reactivity toward renewable energy conversion and storage technologies.…”

“…Thus, this short Focus Review aims to emphasize recent progress in energy-related research on folded nanostructures, i.e., fullerene-like nanoparticles and nanotubes of 2D materials. Admittedly, the synthesis of such nanostructures in a pure form is a highly demanding undertaking, − which partially explains the small degree of interest in these nanostructures. However, recent progress provided ample room for research of these kinds of nanosturcutres, which is delineated in what follows.…”