scholarly journals A Long π-Conjugated Poly-para-Phenylene-Based Polymeric Segment of Single-Walled Carbon Nanotubes

2019 ◽  
Author(s):  
Qiang Huang ◽  
Mengmeng Zhang ◽  
Jinyi Wang ◽  
Shengda Wang ◽  
Yayu Wu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Conjugated Polymers ◽  
Gel Permeation Chromatography ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Potential Applications ◽  
Organic Devices ◽  
Walled Carbon Nanotubes ◽  
Designed Synthesis

Conjugated polymers have attracted much attention for many years and have applications in various organic devices. Carbon nanotubes can be considered as all-carbon tube-shaped conjugated polymers containing only <i>sp</i><sup>2</sup>-bonded atoms, which play an important role in nanotechnology and nanoelectronics. So far, no study has reported the realization of long π-conjugated polymers as diameter-specified carbon nanotube segments. Herein, we report the first synthesis of a π-conjugated polymeric segment (<b>PS1</b>) of armchair single-walled carbon nanotubes. <b>PS1</b> is achieved by a rationally designed synthesis of a bifunctionalized cyclo-<i>para</i>-phenylene monomer, followed by inserting these ring-shaped units into the conjugated <a>poly-<i>para</i>-phenylene </a>backbone. Our <b>PS1</b> was fully characterized by gel permeation chromatography (GPC) combined with NMR, FTIR, and Raman spectra. Its photophysical and unique electronic properties were also investigated. Possessing unique structural and physical properties, this long π-extended polymer <b>PS1</b> can provide new insight for the development of <a></a><a>bottom-up syntheses </a><a></a><a>of uniform </a>carbon nanotube segments and potential applications in electron-transport devices.

scholarly journals A Long π-Conjugated Poly-para-Phenylene-Based Polymeric Segment of Single-Walled Carbon Nanotubes

2019 ◽  
Author(s):  
Qiang Huang ◽  
Mengmeng Zhang ◽  
Jinyi Wang ◽  
Shengda Wang ◽  
Yayu Wu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Conjugated Polymers ◽  
Gel Permeation Chromatography ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Potential Applications ◽  
Organic Devices ◽  
Walled Carbon Nanotubes ◽  
Designed Synthesis

Conjugated polymers have attracted much attention for many years and have applications in various organic devices. Carbon nanotubes can be considered as all-carbon tube-shaped conjugated polymers containing only <i>sp</i><sup>2</sup>-bonded atoms, which play an important role in nanotechnology and nanoelectronics. So far, no study has reported the realization of long π-conjugated polymers as diameter-specified carbon nanotube segments. Herein, we report the first synthesis of a π-conjugated polymeric segment (<b>PS1</b>) of armchair single-walled carbon nanotubes. <b>PS1</b> is achieved by a rationally designed synthesis of a bifunctionalized cyclo-<i>para</i>-phenylene monomer, followed by inserting these ring-shaped units into the conjugated <a>poly-<i>para</i>-phenylene </a>backbone. Our <b>PS1</b> was fully characterized by gel permeation chromatography (GPC) combined with NMR, FTIR, and Raman spectra. Its photophysical and unique electronic properties were also investigated. Possessing unique structural and physical properties, this long π-extended polymer <b>PS1</b> can provide new insight for the development of <a></a><a>bottom-up syntheses </a><a></a><a>of uniform </a>carbon nanotube segments and potential applications in electron-transport devices.

Lipase on carbon nanotube - An active, selective, stable and easy to optimize nanobiocatalyst for kinetic resolutions

2021 ◽  
Author(s):  
Cristian Andrei Gal ◽  
Laura Edit Barabas ◽  
Judith Hajnal Bartha-Vari ◽  
Madalina Elena Moisa ◽  
Diana Balogh-Weiser ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Covalent Binding ◽  
Single Walled Carbon Nanotubes ◽  
Candida Antarctica ◽  
Flow Mode ◽  
Lipase B ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Kinetic Resolutions

An efficient nanobioconjugate of lipase B from Candida antarctica was prepared by the covalent binding on carboxy-functionalized single-walled carbon nanotubes and tested in batch and flow mode for the enzymatic...

scholarly journals Recent developments in the selective dispersion of single-walled carbon nanotubes using conjugated polymers

2017 ◽  
Vol 8 (11) ◽  
pp. 7292-7305 ◽  
Author(s):  
Darryl Fong ◽  
Alex Adronov
Keyword(s):  
Carbon Nanotubes ◽  
Conjugated Polymers ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Recent Developments ◽  
Walled Carbon Nanotubes

Selective dispersion of single-walled carbon nanotubes can be accomplished using conjugated polymers by varying a number of parameters.

scholarly journals Switching the optical and electrical properties of carbon nanotube hybrid films using a photoresponsive dispersant as a dopant

RSC Advances ◽  
2018 ◽  
Vol 8 (20) ◽  
pp. 11186-11190 ◽  
Author(s):  
H. Jintoku ◽  
Y. Matsuzawa ◽  
M. Yoshida
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Electrical Properties ◽  
Single Walled Carbon Nanotubes ◽  
Optical And Electrical Properties ◽  
Hybrid Films ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

The light-induced switching of the optical and electrical properties of single-walled carbon nanotubes hybrid films with photoresponsive dispersant.

Synthesis of flexible nanotweezers with various metals and their application in carbon nanotube extraction

2018 ◽  
Vol 42 (10) ◽  
pp. 7592-7594 ◽  
Author(s):  
Yuya Miyake ◽  
Alejandro López-Moreno ◽  
Jian Yang ◽  
Hai-Jun Xu ◽  
Nicolas Desbois ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes

Flexible nanotweezers including Co(ii) dispersed single-walled carbon nanotubes in methanol.

scholarly journals Enhancing near-infrared photoluminescence from single-walled carbon nanotubes by defect-engineering using benzoyl peroxide

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Lukasz Przypis ◽  
Maciej Krzywiecki ◽  
Yoshiaki Niidome ◽  
Haruka Aoki ◽  
Tomohiro Shiraki ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Conjugated Polymers ◽  
Near Infrared ◽  
Light Emission ◽  
Single Walled Carbon Nanotubes ◽  
Organic Radical ◽  
Defect Engineering ◽  
Single Walled Carbon ◽  
Walled Carbon Nanotubes ◽  
Selection Of

AbstractSingle-walled carbon nanotubes (SWCNTs) have been modified with ester groups using typical organic radical chemistry. Consequently, traps for mobile excitons have been created, which enhanced the optical properties of the material. The proposed methodology combines the benefits of mainstream approaches to create luminescent defects in SWCNTs while it simultaneously avoids their limitations. A step change was achieved when the aqueous medium was abandoned. The selection of an appropriate organic solvent enabled much more facile modification of SWCNTs. The presented technique is quick and versatile as it can engage numerous reactants to tune the light emission capabilities of SWCNTs. Importantly, it can also utilize SWCNTs sorted by chirality using conjugated polymers to enhance their light emission capabilities. Such differentiation is conducted in organic solvents, so monochiral SWCNT can be directly functionalized using the demonstrated concept in the same medium without the need to redisperse the material in water.

Holey single-walled carbon nanotubes for ultra-fast broadband bolometers

Nanoscale ◽  
2018 ◽  
Vol 10 (39) ◽  
pp. 18665-18671 ◽  
Author(s):  
Daria S. Kopylova ◽  
Fedor S. Fedorov ◽  
Alena A. Alekseeva ◽  
Evgenia P. Gilshteyn ◽  
Alexey P. Tsapenko ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Temperature Coefficient ◽  
Single Walled Carbon Nanotubes ◽  
Temperature Coefficient Of Resistance ◽  
Single Walled Carbon ◽  
Carbon Nanotube Network ◽  
Walled Carbon Nanotubes

A holey carbon nanotube network is designed to improve the performance of bolometers. The material possesses a temperature coefficient of resistance up to −2.8% K−1.

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