Nanocomposites of Chalcogenide and their Applications

2018 ◽  
Vol 20 ◽  
pp. 46-64
Author(s):  
Dolly Rana ◽  
Ashish Soni ◽  
Anita Sharma ◽  
Akash Katoch ◽  
Deepika Jamwal
Keyword(s):  
Carbon Nanotubes ◽  
Functional Properties ◽  
Semiconductor Nanoparticles ◽  
Nano Composites ◽  
Chalcogenide Semiconductor ◽  
Metal Chalcogenide ◽  
Semiconductor Nanocomposites

Recently, matrix such as polymer, graphene and carbon nanotubes (CNTs) for the semiconductor nanoparticles plays a promising role due to their better structural, functional properties and broad range of applications in every field. This chapter reviews the metal chalcogenide semiconductor nanocomposites, their properties and applications. Furthermore, the importance of aforementioned matrix and their role in superior properties of metal chalcogenide nano composites have been discussed.

THE PROSPECTS OF USING CARBON NANOTUBES TO IMPART FUNCTIONAL PROPERTIES TO THE SURFACE OF POLYMER MATERIALS (review)

2021 ◽  
pp. 11-21
Author(s):  
L.V. Solovyanchik ◽  
◽  
S.V. Kondrashov ◽  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Properties ◽  
Functional Properties ◽  
Scientific Literature ◽  
Conductive Polymer ◽  
Polymer Materials ◽  
Mechanism Of Formation ◽  
Electrically Conductive ◽  
Structured Surface

Presents a review of the scientific literature on various methods for producing electrically conductive polymer materials and coatings. The prospects of using carbon nanotubes (CNT) to impart high electrical properties to the surface of materials are shown. The mechanism of formation of the structured surface of polymer materials with CNT is described. It is shown that the use of CNT is a promising way to impart electrically conductive and superhydrophobic properties to the surface.

Synthesis of Epoxy Nanocomposites

2021 ◽  
pp. 225-260
Author(s):  
Tamara F. Irzhak ◽  
Vadim I. Irzhak
Keyword(s):  
Carbon Nanotubes ◽  
Functional Properties ◽  
Mutual Effect ◽  
High Reactivity ◽  
Formation Processes ◽  
Epoxy Nanocomposites ◽  
Epoxy Oligomers ◽  
Composite Formation ◽  
Curing Agents ◽  
Epoxy Groups

The formation processes of epoxy nanocomposites with carbon (nanotubes, graphene, and graphite), metal-containing, and aluminosilicate (montmorillonite and halloysite tubes) fillers are considered. A high reactivity of epoxy groups and a thermodynamic miscibility of epoxy oligomers with many substances make it possible to use diverse curing agents and to accomplish curing reactions under various technological conditions. Epoxy nanocomposites are designed to realize to the same extent the unique functional properties of nanoparticles: electric, magnetic, optical, chemical, and biological. The mutual effect of both a matrix and nanoparticles on the composite formation is discussed.

Atomically precise metal-chalcogenide semiconductor molecular nanoclusters with high dispersibility: Designed synthesis and intracluster photocarrier dynamics

Nano Research ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2828-2836 ◽  
Author(s):  
Jiaxu Zhang ◽  
Chaochao Qin ◽  
Yeshuang Zhong ◽  
Xiang Wang ◽  
Wei Wang ◽  
...  
Keyword(s):  
Chalcogenide Semiconductor ◽  
Metal Chalcogenide ◽  
Designed Synthesis ◽  
High Dispersibility

scholarly journals Light-Induced Sulfur Transport inside Single-Walled Carbon Nanotubes

Nanomaterials ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 818 ◽  
Author(s):  
Olga Sedelnikova ◽  
Olga Gurova ◽  
Anna Makarova ◽  
Anastasiya Fedorenko ◽  
Anton Nikolenko ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Functional Properties ◽  
Single Walled Carbon Nanotubes ◽  
Acceptor Interaction ◽  
Local Composition ◽  
X Ray ◽  
Single Walled Carbon ◽  
Before And After ◽  
Donor Acceptor ◽  
Walled Carbon Nanotubes

Filling of single-walled carbon nanotubes (SWCNTs) and extraction of the encapsulated species from their cavities are perspective treatments for tuning the functional properties of SWCNT-based materials. Here, we have investigated sulfur-modified SWCNTs synthesized by the ampoule method. The morphology and chemical states of carbon and sulfur were analyzed by transmission electron microscopy, Raman scattering, thermogravimetric analysis, X-ray photoelectron and near-edge X-ray absorption fine structure spectroscopies. Successful encapsulation of sulfur inside SWCNTs cavities was demonstrated. The peculiarities of interactions of SWCNTs with encapsulated and external sulfur species were analyzed in details. In particular, the donor–acceptor interaction between encapsulated sulfur and host SWCNT is experimentally demonstrated. The sulfur-filled SWCNTs were continuously irradiated in situ with polychromatic photon beam of high intensity. Comparison of X-ray spectra of the samples before and after the treatment revealed sulfur transport from the interior to the surface of SWCNTs bundles, in particular extraction of sulfur from the SWCNT cavity. These results show that the moderate heating of filled nanotubes could be used to de-encapsulate the guest species tuning the local composition, and hence, the functional properties of SWCNT-based materials.

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