Morphology and electrical conductivity of polyaniline coating on acetate film

Parel, Marco Miguel P.; Gillado, Armida V.; Herrera, Marvin U.

doi:10.1016/j.surfin.2017.12.001

Cited by 16 publications

(9 citation statements)

References 27 publications

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“…From his work reported in 1834, he discovered that a dark green PANI changed to black when the mixture of copper(II) chloride and aniline nitrate is heated on a porcelain plate to 100°C [6,7]. Anciently, PANI was known as 'aniline black' , after forming an undesirable black powder deposit on the anode during oxidation of aniline [8,9] and is the most stable CP that can be easily protonated (with an acid) to increase conductivity or deprotonated (with a base) to reduce its conductivity [10]. In 1862, Letheby prepared it through oxidation of aniline under mild conditions [9,11].…”

Section: Introductionmentioning

confidence: 99%

Polyaniline-Based Nanocomposites for Environmental Remediation

Maponya¹,

Hato²,

Somo³

et al. 2021

Trace Metals in the Environment - New Approaches and Recent Advances

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With growth in civilisation and industrialisation, there is an increase in the release of toxic heavy metal ions and dyes into water system, which is of public concern. As a result, appropriate treatment methods have to be implemented in order to mitigate and prevent water pollution. The discovery of nanotechnology has led to the development and utilisation of various nanoadsorbent for the removal of pollutants from water. PANI nanostructures and nanocomposites are noble adsorbents that have gained popularity in addressing water pollution issues and have been reported in literature. In this chapter, the main focus is on the synthesis of PANI nanocomposites and nanostructures and their application as efficient adsorbents for water treatment. Detailed discussions on different synthetic routes and characterisation have been dedicated to applications of these materials and are compared for the adsorptive removal of heavy metal ions and dyes from water.

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Section: Introductionmentioning

confidence: 99%

Polyaniline-Based Nanocomposites for Environmental Remediation

Maponya¹,

Hato²,

Somo³

et al. 2021

Trace Metals in the Environment - New Approaches and Recent Advances

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“…Since the discovery of intrinsically conducting polymers (ICPs), it has received a great interest due to its wide use as supercapacitors, fabrication of electromagnetic interference shield, electrostatic discharged materials, sensors, batteries, and barrier coatings [1][2][3][4][5][6][7]. Conducting properties can be achieved by reduction of the neutral state.…”

Section: Introductionmentioning

confidence: 99%

“…Chemical oxidative polymerization (also known as electrochemical polymerization) in acid media is the most recommended process to increase the electrical conductivity [4,[8][9][10]. PANI can form π − π interactions; thereby, it has been combined with metal oxides and carbon-based materials (carbon nanotubes, fullerene, and graphene) to be used as electrode materials, gas sensors, or electronic nose, artificial muscles [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, different strategies for preparing nanocomposites of inorganic material-conducting polymers to be used as flexible devices with high performance are highly demanded. PANI/graphene and poly (3,4 ethylenedioxythiophene : polystyrene sulfonate (PEDOT : PSS)/graphene have been reported as nanocomposite materials to enhance electrical conductivity and flexibility for thermoelectrical applications, although the correct way and interaction pathway to obtain novel composites of IPCs/graphene are still far to understand.…”

Section: Introductionmentioning

confidence: 99%

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Functionality of TERGO Powders during the Synthesis of PANI-Based Composites for Electrical Devices

Domínguez‐Crespo

López‐Oyama

Torres‐Huerta

et al. 2019

Journal of Nanomaterials

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In this work, hybrid composites were prepared using polyaniline (PANI) and electrochemically reduced graphene oxide (ERGO) by in situ polymerization. ERGO powders were obtained by a two-way route, Hummer's method, and one-step potential (−2 V) followed by annealing process at 400°C (TERGO powders): different quantities of TERGO fine particles (10, 20, and 30 wt%) were added to the in situ PANI polymerization in order to produce the hybrid composites. The morphology and structure of the PANI/TERGO compounds were characterized by Raman spectroscopy, ultraviolet-visible spectroscopy (UV-Vis), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Thermal treatment of ERGO powders pointed out high-defect surfaces with a wrinkle-type morphology (I D /I G ratio~0.90). The emeraldine phase of PANI was obtained with a maximum value of 61%, which decreases with the amount of TERGO powders. It is also seen that composites displayed a combined morphology between PANI matrix and TERGO powders, confirming a physical interaction between both morphologies. The amount of TERGO particles into the polymeric matrix also modifies the sample microstructure from a semispherical shape to extend sheets, where PANI is sandwiched between TERGO layers. Electrical conductivity of composites slightly increases independent of the TERGO amount (30 S/m and 39 S/m) due to the rough TERGO surface that conditioned the homogeneous nucleation of a large amount of polymer (PANI) reducing the area to move the electrical charge.

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“…Among numerous of CPs, PANI is a standout conducting polymer with numerous advantages. It receives numerous surveillance because it is environmentally stable, able to mix with thermoplastics, has high conductivity, minimal cost, simplicity of synthesis, has special redox behaviour and able to electrically switch between its conductive and insulator states by doping or dedoping process [11]. The reasons on the interest in many areas of fields are due to the fact that it can easily be synthesized and processed.…”

Section: Introductionmentioning

confidence: 99%

Electrically Conductive Polyester Fabrics Embedded Polyaniline

Omar¹,

Ariffin²,

Akhir³

et al. 2019

IJET

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Recently, conductive fabric has attracted massive attention among researchers due to their unique conductive properties with a wide range of possible applications. This study explores the fabrication of poly aniline (PANI) conductive fabric through an immersion technique of polyester fabric in PANI solution. Two types of acids (sulphuric acid (H2SO4) and p-toulene sulfonic acid (pTSA) have been employed as the doping agent to induce the conductivity in various weight percentages (0.3, 0.6 and 0.9 wt%) with immersion time of 5, 10 and 15 minutes. The fabricated conducting fabrics were then characterized by Fourier Transform Infrared Spectroscopy with attenuated total reflection (FTIR-ATR) and X-ray Diffraction (XRD) for analyses of chemical structure and phase identification respectively. Their morphologies were observed by Scanning Electron Microscope (SEM) which revealed the various fibrous structure. The finding is in line with the electrical conductivity properties of the fabrics observed using Four-point probe technique. Optimum conductivity of the conductive fabrics were found to be at 0.6 wt. % for both types of acid which are 1.30 x 10-2 S/cm (H2SO4) and 1.39 x10-3 S/cm (pTSA). Meanwhile, the varied immersion time showed no significant changes on this property, due to the short time laps. For FTIR results, the peaks confirmed the presence of PANI-EB together with the introduced acid within the PANI backbone. Collectively, H2SO4 is found to be a good candidate as doping agent, deduced from obtained conductivity values and structural properties.

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Morphology and electrical conductivity of polyaniline coating on acetate film

Cited by 16 publications

References 27 publications

Polyaniline-Based Nanocomposites for Environmental Remediation

Polyaniline-Based Nanocomposites for Environmental Remediation

Functionality of TERGO Powders during the Synthesis of PANI-Based Composites for Electrical Devices

Electrically Conductive Polyester Fabrics Embedded Polyaniline

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