Supercapacitance of Single-Walled Carbon Nanotubes-Polypyrrole Composites

The composites based on carbon nanotubes (CNTs) and conducting polymers (CPs) are promising materials for supercapacitor devices due to their unique nanostructure that combines the large pseudocapacitance of the CPs with the fast charging/discharging double-layer capacitance and excellent mechanical properties of the CNTs. Here, we report a new electrochemical method to obtain polypyrrole (PPY)/single-walled carbon nanotube (SWCNT) composites. In the first step, the SWCNTs are covalently functionalized with monomeric units of pyrrole by esterification of acyl chloride functionalized SWCNTs and N-(6-hydroxyhexyl)pyrrole. In the second step, the PPY/SWCNTs composites are obtained by copolymerizing the pyrrole monomer with the pyrrole units grafted on SWCNTs surface using controlled potential electrolysis. The composites were further characterized by cyclic voltammetry and electrochemical impedance spectroscopy. The results showed good electrochemical charge storage properties for the synthesized composites based on PPY and SWCNTs covalently functionalized with pyrrole units making them promising electrode materials for high power supercapacitors.

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Supramolecular structures of terbium(iii) porphyrin double-decker complexes on a single-walled carbon nanotube surface

RSC Advances ◽

10.1039/c9ra05818d ◽

2019 ◽

Vol 9 (48) ◽

pp. 28135-28145

Author(s):

Ahmed I. A. Abd El-Mageed ◽

Takuji Ogawa

Keyword(s):

Carbon Nanotubes ◽

Scanning Probe Microscopy ◽

Single Walled Carbon Nanotubes ◽

Supramolecular Structures ◽

Scanning Probe ◽

Single Walled Carbon Nanotube ◽

Single Walled Carbon ◽

Double Decker ◽

Walled Carbon Nanotubes ◽

First Time

For the first time, using scanning probe microscopy, the supramolecular structures of terbium porphyrin double-decker complexes were observed on single-walled carbon nanotubes surfaces, where the molecules formed a well-ordered self-assembled array.

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In Situ-Grown ZnCo2 O4 on Single-Walled Carbon Nanotubes as Air Electrode Materials for Rechargeable Lithium-Oxygen Batteries

ChemSusChem ◽

10.1002/cssc.201500636 ◽

2015 ◽

Vol 8 (21) ◽

pp. 3697-3703 ◽

Cited By ~ 30

Author(s):

Bin Liu ◽

Wu Xu ◽

Pengfei Yan ◽

Priyanka Bhattacharya ◽

Ruiguo Cao ◽

...

Keyword(s):

Carbon Nanotubes ◽

Electrode Materials ◽

Single Walled Carbon Nanotubes ◽

Air Electrode ◽

Single Walled Carbon ◽

Lithium Oxygen Batteries ◽

Walled Carbon Nanotubes

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Safe, economical and fast-charging secondary batteries using single-walled carbon nanotubes

Japanese Journal of Applied Physics ◽

10.7567/1347-4065/aaea68 ◽

2018 ◽

Vol 58 (SA) ◽

pp. SAAE02 ◽

Cited By ~ 2

Author(s):

Canghao Li ◽

Yosuke Ishii ◽

Shinji Kawasaki

Keyword(s):

Carbon Nanotubes ◽

Single Walled Carbon Nanotubes ◽

Single Walled Carbon ◽

Fast Charging ◽

Walled Carbon Nanotubes

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All-Printed Thin-Film Transistor Based on Purified Single-Walled Carbon Nanotubes with Linear Response

Journal of Nanotechnology ◽

10.1155/2011/823680 ◽

2011 ◽

Vol 2011 ◽

pp. 1-4 ◽

Cited By ~ 5

Author(s):

Guiru Gu ◽

Yunfeng Ling ◽

Runyu Liu ◽

Puminun Vasinajindakaw ◽

Xuejun Lu ◽

...

Keyword(s):

Thin Film ◽

Carbon Nanotubes ◽

Field Effect Transistors ◽

Thin Film Transistor ◽

Oxide Semiconductor ◽

Single Walled Carbon Nanotube ◽

Single Walled Carbon ◽

Analog Electronics ◽

The One ◽

Walled Carbon Nanotubes

We report an all-printed thin-film transistor (TFT) on a polyimide substrate with linear transconductance response. The TFT is based on our purified single-walled carbon nanotube (SWCNT) solution that is primarily consists of semiconducting carbon nanotubes (CNTs) with low metal impurities. The all-printed TFT exhibits a high ON/OFF ratio of around 103and bias-independent transconductance over a certain gate bias range. Such bias-independent transconductance property is different from that of conventional metal-oxide-semiconductor field-effect transistors (MOSFETs) due to the special band structure and the one-dimensional (1D) quantum confined density of state (DOS) of CNTs. The bias-independent transconductance promises modulation linearity for analog electronics.

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The impact of the Marangoni convection and magnetic field versus blood-based carbon nanotube nanofluids

Proceedings of the Institution of Mechanical Engineers Part N Journal of Nanomaterials Nanoengineering and Nanosystems ◽

10.1177/2397791419872892 ◽

2019 ◽

Vol 234 (1-2) ◽

pp. 37-46

Author(s):

Taza Gul ◽

Ramla Akbar ◽

Zafar Zaheer ◽

Iraj S Amiri

Keyword(s):

Magnetic Field ◽

Carbon Nanotubes ◽

Carbon Nanotube ◽

Marangoni Convection ◽

Thin Liquid Film ◽

Casson Fluid ◽

Single Walled Carbon Nanotube ◽

Single Walled Carbon ◽

Walled Carbon Nanotubes ◽

The Impact

The mutual result of the magnetic field and Marangoni convection against the thin liquid film of Casson fluid, blood-based carbon nanotube nanofluid has been fruitfully discussed in this article. The influence of various model constraints is focused on velocity, heat transfer, pressure distribution, skin friction and Nusselt number through graphical illustration. In addition, we witness that the thermal field of liquid raises with the growing value of [Formula: see text] and this upsurge is more in single-walled carbon nanotubes and is more dominant than multi-walled carbon nanotubes. The controlling approach of the homotopy analysis method has been used for velocity and temperature distribution. For authentication, the achieved results have been associated with the numerical (ND-Solve) method and displayed. This investigation shows that the velocity profile in the case of Casson fluid single-walled carbon nanotube–blood nanofluid is comparatively less affected and the temperature field of single-walled carbon nanotube–blood nanofluid dominates multi-walled carbon nanotube–blood nanofluid.

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Highly efficient thermophones based on freestanding single-walled carbon nanotube films

Nanoscale Horizons ◽

10.1039/c9nh00164f ◽

2019 ◽

Vol 4 (5) ◽

pp. 1158-1163 ◽

Cited By ~ 8

Author(s):

Stepan A. Romanov ◽

Ali E. Aliev ◽

Boris V. Fine ◽

Anton S. Anisimov ◽

Albert G. Nasibulin

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanotube ◽

State Of The Art ◽

Single Walled Carbon Nanotubes ◽

The State ◽

Single Walled Carbon Nanotube ◽

Single Walled Carbon ◽

Highly Efficient ◽

Art Performance ◽

Walled Carbon Nanotubes

We present the state-of-the-art performance of air-coupled thermophones made of thin, freestanding films of randomly oriented single-walled carbon nanotubes (SWCNTs).

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The Long-Term Fate and Toxicity of PEG-Modified Single-Walled Carbon Nanotube Isoliquiritigenin Delivery Vehicles in Rats

Journal of Nanomaterials ◽

10.1155/2014/257391 ◽

2014 ◽

Vol 2014 ◽

pp. 1-8 ◽

Cited By ~ 4

Author(s):

Bo Han ◽

Mingming Zhang ◽

Ting Tang ◽

Qiusheng Zheng ◽

Keyu Wang ◽

...

Keyword(s):

Carbon Nanotubes ◽

Molecular Weight ◽

Single Walled Carbon Nanotubes ◽

Blood Clearance ◽

Single Walled Carbon Nanotube ◽

Single Walled Carbon ◽

Tissue Sections ◽

Covalently Linked ◽

Walled Carbon Nanotubes

Oxidized single-walled carbon nanotubes (o-SWNTs) was modified by covalently and noncovalently linking PEG to the o-SWNTs. The influence of oxidation time, PEG molecular weight, and type of PEG linkage on the blood clearance time of PEG-modified single-walled carbon nanotubes (SWNTs) was investigated. The toxicity profile of SWNTs covalently linked to PEG (c-PEG-o-SWNTs) in rats has also been determined. The pharmacokinetics of c-PEG-o-SWNTs in rats and their distribution in vital organs were monitored by Raman spectroscopy, and the blood clearance of homogenate isoliquiritigenin (ISL) was determined by HPLC. Photos of tissue and tissue sections were taken to evaluate the toxicity of c-PEG-o-SWNTs. We found that SWNTs which were covalently modified with PEG and have a molecular weight of 3500 had the longest blood clearance half-lives. However, SWNTs were toxic to the kidneys and the hearts. The high renal clearance of long-term fate SWNTs may occur because of impaired kidney filtration function. Therefore, we assume that while researchers study the long-term fate of SWNTs, the toxicity of SWNTs also needs to be taken into account.

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Photochemical generation of bis-hexahapto chromium interconnects between the graphene surfaces of single-walled carbon nanotubes

Materials Horizons ◽

10.1039/c4mh00192c ◽

2015 ◽

Vol 2 (1) ◽

pp. 81-85 ◽

Cited By ~ 10

Author(s):

Aron Pekker ◽

Mingguang Chen ◽

Elena Bekyarova ◽

Robert C. Haddon

Keyword(s):

Carbon Nanotubes ◽

Carbon Nanotube ◽

Single Walled Carbon Nanotubes ◽

Single Walled Carbon Nanotube ◽

Single Walled Carbon ◽

Photochemical Generation ◽

Carbon Nanotube Junctions ◽

Walled Carbon Nanotubes

The linkage of single-walled carbon nanotube junctions by the photochemistry of organometallic chromium reagents produces dramatic increases in network conductivity.

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