Spectroscopic investigation of conjugated polymer/single-walled carbon nanotube interactions

Carthy, B. Mc; Dalton, Alan B.; Coleman, Jonathan N.; Byrne, Hugh J.; Bernier, P.; Blau, Werner J.

doi:10.1016/s0009-2614(01)01184-8

Cited by 29 publications

(15 citation statements)

References 18 publications

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“…We have recently reported a procedure that was based on solution-phase NIR analyses, for evaluating the relative concentration of SWNTs in a given sample . Spectroscopically observed electronic transitions in SWNTs have been interpreted in terms of the aggregation state of SWNTs. , We now use NIR spectroscopy to understand the polymer−SWNT interaction. − …”

Section: Resultsmentioning

confidence: 99%

Ultrasonic Dispersions of Single-Walled Carbon Nanotubes

et al. 2003

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The nature of single-walled carbon nanotube (SWNT)−solvent interaction that is responsible for the stabilization of ultrasonicated dispersions was investigated using various techniques. It was found that the sonochemical decomposition and polymerization of o-dichlorobenzene (ODCB) is necessary for the stabilization of SWNTs in ODCB. The rate of decomposition of ODCB was shown to be dependent on the shape of the sonication vessel. The decomposition products of sonicated ODCB interact irreversibly with SWNTs. Under similar sonication conditions, N,N-dimethylformamide (DMF) did not induce discernible modification of the near-infrared spectrum of the dispersed SWNTs.

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Section: Resultsmentioning

confidence: 99%

Ultrasonic Dispersions of Single-Walled Carbon Nanotubes

et al. 2003

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“…It has been demonstrated that CNT conductivity depends on temperature [9,10] . Thus, CNTs have many potential applications in electromagnetic shielding, overcurrent protection, electrostatic protection, electromagnetic absorption, and transducers [11][12][13][14][15] . In recent years, polymer=CNT composites have become a new emphasis in research [16] .…”

Section: Introductionmentioning

confidence: 99%

Preparation of a HDPE/Carbon Nanotube Composite

Yu¹,

Yeh²,

Huang³

et al. 2010

Polymer-Plastics Technology and Engineering

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This experiment adopted mixed acid (H 2 SO 4 :HNO 3 ¼ 3:1) to purify multi-walled carbon nanotubes, and used a silane coupling agent n-octyltriethoxysilane (OTES) to modify carbon nanotubes, respectively. Then we mixed OTES-modified carbon nanotubes (CNTs) with high-density polyethylene (HDPE) resin to make a composite. TGA analysis results revealed that as the CNTs'content increased, the Td 10 tended to rise. The amount of composite residual at 500 C also increased, as well as the composite electrical conductivity. When a concentration of 5% OTES was used to modify the CNT, the resultant composite exhibited better electrical conductivity.

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“…An aqueous dispersion of multiwall carbon nanotube was cast on a glassy carbon electrode (GCE) surface and used for electrochemical deposition of the polymer film. There have been some attempts in the literature − to explain the interaction between polyaniline and carbon nanotube. But in these studies, the polyaniline−carbon nanotube composites were mainly prepared by chemical polymerization procedures.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrochemical Growth and Redox Characteristics of Poly(o-phenylenediamine) on a Carbon Nanotube Modified Glassy Carbon Electrode and Its Application in the Electrocatalytic Reduction of Oxygen

and

Saraswathi

2007

J. Phys. Chem. C

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The electrochemical growth current of poly(o-phenylenediamine) as well as its redox current were enhanced several-fold when deposited on a carbon nanotube modified glassy carbon electrode compared to the same at a glassy carbon surface. The current enhancements during the growth of the polymer were not due to any surface area effects but are attributed to a facilitated nucleation involving acidic sites of the carbon nanotube. The poly(o-phenylenediamine)-carbon nanotube composite electrode showed a polymer redox-mediated electrocatalytic effect for oxygen reduction reaction with a 5-fold enhancement in current and a favorable potential shift of 130 mV compared to the values obtained at a poly(o-phenylenediamine) electrode.

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Spectroscopic investigation of conjugated polymer/single-walled carbon nanotube interactions

Cited by 29 publications

References 18 publications

Ultrasonic Dispersions of Single-Walled Carbon Nanotubes

Ultrasonic Dispersions of Single-Walled Carbon Nanotubes

Preparation of a HDPE/Carbon Nanotube Composite

Enhanced Electrochemical Growth and Redox Characteristics of Poly(o-phenylenediamine) on a Carbon Nanotube Modified Glassy Carbon Electrode and Its Application in the Electrocatalytic Reduction of Oxygen

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