Hydrogen-bonded metallo-supramolecular polymers based on ruthenium or iron complexes for the selective extraction of single-walled carbon nanotubes

2018 ◽  
Vol 47 (40) ◽  
pp. 14195-14203 ◽  
Author(s):  
Shota Oka ◽  
Hiroaki Ozawa ◽  
Kai Yoshikawa ◽  
Tomiki Ikeda ◽  
Masa-aki Haga
Keyword(s):  
Carbon Nanotubes ◽  
Surface Modification ◽  
Single Walled Carbon Nanotubes ◽  
Iron Complexes ◽  
Selective Extraction ◽  
Supramolecular Polymers ◽  
Supramolecular Polymer ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Hydrogen Bonded

Selective extraction of semiconducting SWNT via entangled surface modification by H-bonded metallo-supramolecular polymer was achieved.

Surface modification of single-walled carbon nanotubes and their use in the polymerization of acrylic monomers

2013 ◽  
Vol 17 (5) ◽  
pp. 416-424 ◽  
Author(s):  
Mildred Flores-Guerrero ◽  
Luis E. Elizalde ◽  
Alex Elías-Zuñiga ◽  
Raquel Ledezma ◽  
Gladys de los Santos ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Modification ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Acrylic Monomers ◽  
Walled Carbon Nanotubes

Effects of the Molecular Weight of PCz on Selective Extraction of Large-Diameter Semiconducting Single-Walled Carbon Nanotubes

2021 ◽  
Vol 69 ◽  
pp. 11-21
Author(s):  
Ping Zhang ◽  
Wen Hui Yi ◽  
Bai Lei ◽  
Jin Feng Zhou ◽  
Yi Long Tian ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Weight ◽  
Arc Discharge ◽  
Large Diameter ◽  
Single Walled Carbon Nanotubes ◽  
Selective Extraction ◽  
High Yield ◽  
Extraction Technology ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Due to the difficulty in the selective synthesis of semiconductor (s-) and metal (m-) single-walled carbon nanotubes (SWCNTs), we still need to explore the selective extraction technology of s-SWCNTs. Using Poly[9-(1-octylonoyl)-9H-carbazole-2,7-diyl] (PCz) extraction of s-SWCNTs has attracted extensive attention in recent years, because it can selective extraction of large-diameter s-SWCNTs with high purity. However, influence of the molecular weight of this polymer on the s-SWCNTs selective extraction properties remains unclear. In this study, we used PCz with different average molecular weights to study the ability of selective extraction s-SWCNTs from pristine arc discharge carbon nanotubes. Spectra studies indicate that compared to the PCz with lower molecular weight, the PCz with higher molecular weight has better selective extraction ability, and can help to obtain s-SWCNTs with higher purity (>99%) and high yield. FETs devices have been prepared by s-SWCNTs obtained via PCz with higher molecular weight exhibit higher on/off ratio, lower off current and lower subthreshold swing. This work offers a reference of the design and synthesis of PCz polymer that performs sufficient selective ability in extracting s-SWCNTs with promising applications.

Enhancement of mechanical stability in hydrogen-bonded photomobile materials with chemically modified single-walled carbon nanotubes

2014 ◽  
Vol 2 (13) ◽  
pp. 2313-2315 ◽  
Author(s):  
Tetsuya Ozawa ◽  
Mizuho Kondo ◽  
Jun-ichi Mamiya ◽  
Tomiki Ikeda
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Crystalline ◽  
Mechanical Stability ◽  
Single Walled Carbon Nanotubes ◽  
Crystalline Polymer ◽  
Polymer Fibers ◽  
Single Walled Carbon ◽  
Chemically Modified ◽  
Walled Carbon Nanotubes ◽  
Hydrogen Bonded

Hydrogen-bonded photomobile liquid-crystalline polymer fibers with chemically modified single-walled carbon nanotubes were prepared and their photomobile properties were investigated.

Surface modification of single-walled carbon nanotubes by functional nitrogen-containing groups and study of their properties

2017 ◽  
Vol 476 (2) ◽  
pp. 186-189
Author(s):  
V. V. Chesnokov ◽  
A. S. Chichkan ◽  
E. A. Paukshtis ◽  
D. A. Svintsitskiy ◽  
Z. R. Ismagilov ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Surface Modification ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

scholarly journals Carbon nanotubes functionalized with copper hexacyanoferrate nanoparticles for a selective extraction of cesium from liquid waste

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
H. Draouil ◽  
L. Alvarez ◽  
J. Causse ◽  
V. Flaud ◽  
M.A. Zaibi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Copper Ions ◽  
Liquid Waste ◽  
Single Walled Carbon Nanotubes ◽  
Selective Extraction ◽  
Carbon Supports ◽  
Copper Hexacyanoferrate ◽  
Single Walled Carbon ◽  
High Sorption ◽  
Walled Carbon Nanotubes

Single-walled carbon nanotubes are functionalized with copper hexacyanoferrate nanoparticles for the liquid-solid extraction of cesium from liquid waste and contaminated water. The functionalization process is followed mainly by x-ray photoemission spectroscopy. Indeed, determining the chemical environment around carbon or nitrogen atoms allows to evidence the formation of covalent bounding. In addition, the signatures of iron and copper ions give information on the effective growth of hexacyanoferrate nanoparticles. Furthermore, the cesium sorption mechanism is investigated by comparing the peak intensities associated to the response of potassium and cesium ions. Finally, based on the liquid chromatography analyzes, the sorption of cesium with the functionalized carbon supports is studied. The main results of this work are the demonstration of both a good selectivity of cesium trapping and a high sorption capacity by hybrid single-walled carbon nanotubes.

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