Polyaniline / carbon nanotube composites: starting with phenylamino functionalized carbon nanotubes

Philip, Biju; Xie, Jining; Abraham, Jose K.; Varadan, Vijay K.

doi:10.1007/s00289-004-0321-x

Cited by 104 publications

(55 citation statements)

References 25 publications

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“…Hydrogen bonding between the amino groups of aniline monomers and the carboxylic acid/acyl chloride groups of CNT has been also reported [35]. Simple adsorption of aniline monomers onto the surface of CNT has been suggested [36]. The carboxylic acid groups introduced on the sidewalls of the CNT by acid oxidative treatment have been shown to induce doping in PANI [78].…”

Section: Interactions Between Pani and Cntmentioning

confidence: 98%

Polyaniline-carbon nanotube composites

Gajendran

Saraswathi

2008

Pure and Applied Chemistry

132

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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.

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Section: Interactions Between Pani and Cntmentioning

confidence: 98%

Polyaniline-carbon nanotube composites

Gajendran

Saraswathi

2008

Pure and Applied Chemistry

132

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“…It was found, however, that the doping of PAn with anionic species [34 -36], or the preparation of composites consisting of PAn with negatively charged polymers such as polystyrene sulfonate (PSS) [37] or polyacrylic acid (PAA) [38] switches the redox activity of the composite materials to neutral pH values. Composite structures of PAn and CNTs were reported by the deposition of PAn on CNT-modified electrodes [39], by the application of self-assembly [40], by the co-electropolymerization of CNTs and aniline [41], by the functionalization of CNTs with aniline units as promoters for polymerization [42], by the coaxial growth of PAn/CNTs nanowires [43], and by the polymerization of self-aligned CNTs in PAn [44]. Several applications of PAn/CNTs composite systems were reported including their use as printable conductors for thermal imaging [45] and for electrocatalytic sensing of nitrate in acidic aqueous media [46].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Bioelectrocatalysis Using Single‐Walled Carbon Nanotubes (SWCNTs)/Polyaniline Hybrid Systems in Thin‐Film and Microrod Structures Associated with Electrodes

et al. 2006

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The charge transport properties in composites consisting of pyrene sulfonic acid-functionalized single-walled carbon nanotubes embedded in polyaniline, PAn/SWCNTs, and polystyrene sulfonate-doped PAn, PAn/PSS, are compared in thin-film and microrods configurations. The PAn/SWCNTs and PAn/PSS microrods were prepared by the electropolymerization of the respective components in porous alumina membranes coated with a conductive gold support, followed by the dissolution of the membrane template. The charge transport upon the oxidation of the PAn/ SWCNTs planar film or microrods structures is ca. 3.5 -4.0-fold faster than upon the oxidation of the PAn/PSS planar film or microrods structures, respectively. The faster charge transport in the PAn/SWCNTs films and microrods is used to enhance the mediated bioelectrocatalyzed oxidation of glucose in the presence of glucose oxidase (GOx). The bioelectrocatalyzed oxidation of glucose in the presence of the PAn/SWCNTs in the planar film and microrods structures is ca. 2-fold and up to 6-fold (depending on the potential) enhanced as compared to the respective PAn/PSS configurations.

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“…The electrochemical properties of the supercapacitor electrodes were studied by symmetric assemblies of each material in a two-electrode configuration by cyclic voltammetry (CV) and galvanostatic charge-discharge tests using Arbin Instruments. The cell capacitance (C in F) was calculated according to eqn (1) or from the charge-discharge curves according to eqn (2) ( 1) where 'i' is the average cathodic current of the CV loop and's' is the scan (Khomenko et al [11]), (2) where 'I' is the constant current for the charge-discharge is the slope of the discharge curve (Philip et al [12]). The specific capacitance (C sp in Fg -1 ) was then calculated as: (3) where 'm' is the mass of active material in the electrode.…”

Section: Preparation Of Electrodes and Electrochemical Measurementsmentioning

confidence: 99%

Study of ternary metal oxides as supercapacitor electrodes

Bhujun¹,

Anandan²,

Tan³

2014

Energy and Sustainability V

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Supercapacitors are energy storage devices that make use of ion adsorption (electrochemical double layer capacitors) or fast surface redox reactions (pseudocapacitors). They complement batteries in electrical energy storage. Recent advances in charge storage mechanisms and the development of advanced nanostructured materials has yielded notable improvement in the performance of supercapacitors. The structural and electrochemical properties of the mixed metallic oxides Al x Cu y Co z Fe 2 O 4 (where x + y + z = 1) nanomaterials, which crystallise in a cubic spinel AFe 2 O 4 structure are investigated systematically with a gradual substitution of Al by transition metals. The crystal structure information studied by X-ray diffraction (XRD) depicts the formation of single phase spinel structure, while electron-dispersive X-ray spectroscopy (EDX) reveals the stoichiometric relations of Al, Cu and Co.

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Polyaniline / carbon nanotube composites: starting with phenylamino functionalized carbon nanotubes

Cited by 104 publications

References 25 publications

Polyaniline-carbon nanotube composites

Polyaniline-carbon nanotube composites

Enhanced Bioelectrocatalysis Using Single‐Walled Carbon Nanotubes (SWCNTs)/Polyaniline Hybrid Systems in Thin‐Film and Microrod Structures Associated with Electrodes

Study of ternary metal oxides as supercapacitor electrodes

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