Carbon nanotube/polyaniline core-shell nanowires prepared by in situ inverse microemulsion

In this study, carbon nanotubes were synthesized at temperatures of 500• C and 800• C by the uidized--bed chemical vapor deposition method. The synthesized material was puried by using 3 M HCl at 75• C, 15 h. After synthesis and purication, the polyaniline-doped H3BO3 and BF3 and composites were prepared by coagulation method. Transmission electron microscope and Fourier transform infrared spectroscopy were used to characterize the carbon nanotubes and their composites. Thermal stabilities were measured by thermogravimetry and dierential scanning calorimetry instruments. The thermogravimetry and derivative thermogravimetry curves indicated that the thermal stability of polyaniline-doped H3BO3 and BF3 increased with carbon nanotube doping. The electrical properties of carbon nanotubes and their composites were also determined. The obtained electrical conductivity values of the nanocomposites including the polyaniline-doped H3BO3 and BF3 were typical for organic semiconductor materials. It can be evaluated that the electrical properties of the polyaniline based polymers can be controlled by carbon nanotube doping.

show abstract

“…This phenomenon is similar to Ref. [12] because of the interaction between CNTs sidewalls and PANI chains. Fig.…”

Section: Thermal Stability and Electrical Conductivity Measurementsupporting

confidence: 87%

Thermal and Electrical Properties of Carbon Nanotube Based Materials

et al. 2013

View full text Add to dashboard Cite

show abstract

“…In general, the SEM characterization of these composites reveals a uniform wrapping of CNT by PANI forming core-shell nanostructures (Fig. 2) [44,61,66,73]. The shell diameter depends on PANI content in the composites.…”

Section: Characterization Studiesmentioning

confidence: 90%

“…The synthesis method and the degree of graphitization of CNT affect the decomposition behavior of these composites [44,49]. Doped PANI exhibits a three-step decomposition viz.…”

Section: Salient Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

Polyaniline-carbon nanotube composites

Gajendran

Saraswathi

2008

Pure and Applied Chemistry

137

View full text Add to dashboard Cite

Abstract:The key developments in polyaniline-carbon nanotube (PANI-CNT) composites are reviewed. Apart from in situ chemical polymerization and electrochemical deposition, a number of interesting approaches including the use of aniline functionalized CNTs and ultrasound/microwave/γ-radiation initiated polymerization have been used in the preparation of composites. The structure and properties of these composites have been investigated by a variety of techniques including absorption, infrared (IR), Raman, X-ray photoelectron spectroscopy methods, scanning electron and scanning probe microscopy techniques, cyclic voltammetry, and thermogravimetry. The experimental results indicate favorable interaction between PANI and CNTs. The CNT content in these composites controls their conductive, mechanical, and thermal properties. The most interesting characteristic is their easy dispersibility in aqueous solution. The performance evaluation studies of PANI-CNT composites in a number of applications including supercapacitors, fuel cells, sensors, and actuators are highlighted.

show abstract

“…After coating graphitic materials (MWCNTs and G) with PANI, the spectra reflect the presence of polymer overlay. The interaction between graphitic materials (MWCNTs and G) and CPs manifested by PANI peaks shifts and intensity increases [31,32,[38][39][40], the spectrum is approximately similar to PANI spectrum, however, exhibits changes in the intensity of the bands at about 1242 cm -1 and the prominent band at 1121 cm -1 differed slightly in shape and shifted to higher wave number [32,34,41]. These changes interpret the charge transfer between the PANI and graphitic materials (MWCNTs and G), hence improving the electrical conductivity of PANI.…”

Section: Ftir Characterizationmentioning

confidence: 99%

Comparative study on doping of polyaniline with graphene and multi-walled carbon nanotubes

et al. 2017

View full text Add to dashboard Cite

This study reported the doping of polyaniline (PANI) with graphene (G) and multi-walled carbon nanotubes (MWCNTs) by in situ polymerization. The molecular structure of PANI and its composites was observed by FTIR, which shows that the intensity of composites peaks are higher than pure PANI due to charge transfer between the PANI and graphitic allotropes. The structural information and crystallinity of PANI and its composites can be deduced from X-ray diffraction. The morphological characterization was observed by transmission electron microscope, which elucidated that aniline molecules were physically adsorbed and polymerized on the surface of graphene and MWCNTs due to p-p* electron interaction. PANI represents as an external layer of composites with several diameters depending on the PANI deposition degree, where the cores are G and MWCNTs. The conductivity measurement clarified the conductivity value of 0.1 wt% G in PANI matrix is higher 17 times than PANI without it.

show abstract

Carbon nanotube/polyaniline core-shell nanowires prepared by in situ inverse microemulsion

Cited by 142 publications

References 37 publications

Thermal and Electrical Properties of Carbon Nanotube Based Materials

Thermal and Electrical Properties of Carbon Nanotube Based Materials

Polyaniline-carbon nanotube composites

Comparative study on doping of polyaniline with graphene and multi-walled carbon nanotubes

Contact Info

Product

Resources

About