Conductive polymers and metal oxide polymeric composites for nanostructures and nanodevices

Thomas, Sylvia; Khan, Ridita Rahman; Puttananjegowda, Kavyashree; Serrano‐Garcia, William

doi:10.1016/b978-0-12-816865-3.00009-3

Cited by 12 publications

(4 citation statements)

References 114 publications

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“…Besides silica, the other nanoparticle that can be categorized into metallic oxide is also used as a nanofiller to develop dielectric nanostructure materials. Metal oxide can be considered a good nanofiller to be merged within a polymer matrix since they have good electrical insulating behaviour and can be dispersed easily due to their hydrophilic characteristic [86] [87].…”

Section: Dielectric Insulation Of Nanocomposites Polymermentioning

confidence: 99%

Application of Cold Plasma in Nanofillers Surface Modification for Enhancement of Insulation Characteristics of Polymer Nanocomposites: A Review

2021

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Polymer nanocomposites have gained much attention among researchers due to their excellent characteristics, such as high thermal resistivity and the ability to withstand higher electrical stress. Introducing nanoparticles into the polymer matrix can further improve the insulation characteristics. However, the effectiveness of nanocomposite polymer to suppress an electrical tree, enhancing the partial discharge, and increase the breakdown strength is still a question mark due to the agglomeration issue of nanoparticles, which causing the nanoparticle to be dispersed non-uniformly within the polymer matrix. Plasma treatment is one of the methods that potentially replace conventional modification techniques such as chemical functionalization and heat treatment to improve the dispersion of nanoparticles, nanocomposite bonding, and the compatibility between polymer-nanoparticle interfaces. By altering the surface of nanoparticles using cold plasma with a glow discharge mechanism, the surface morphology of nanoparticles can be modified in terms of chemical structure, which indirectly solves the nanoparticle agglomeration. This study presents a review on the application of cold plasma in surface modification to enhance insulation characteristics of nanocomposite polymers. Various polymer hosts combined with different untreated and plasma-treated nanofillers are also reviewed. The trends on nanomaterial surface modification using the cold plasma technique based on its operating pressure to improve the dielectric properties of nanocomposite polymers are also discussed accordingly.INDEX TERMS Cold plasma, nanofillers surface modification, nanocomposites polymer, and plasma treatment.

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Section: Dielectric Insulation Of Nanocomposites Polymermentioning

confidence: 99%

Application of Cold Plasma in Nanofillers Surface Modification for Enhancement of Insulation Characteristics of Polymer Nanocomposites: A Review

2021

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“…Composites of conductive polymers (CP) and metal oxides (MO) are useful in a variety of fields, including sensors, drug delivery, catalysts, and supercapacitors, owing to their unique and versatile properties such as tunable electrical conductivity, stretchability, and electrochemical activity. − The various properties of the composite materials depend on the types of synthetic methods and specific experimental conditions that determine the chemical composition and its distribution, doping, and oxidation states of the composites. Therefore, the development of new techniques for the synthesis of CP-MO composites has gained considerable attention.…”

Section: Introductionmentioning

confidence: 99%

“…One of the main goals of the previous works was to increase the electrical conductivities of the doped PANI or PANI–oxide composite films to levels comparable to those of PANI doped with HCl via conventional solution processes . While PANI–oxide composite films prepared via different methods have been reported to present improved mechanical, thermal, and electrochemical properties, − composite films prepared via SIS have rarely been explored …”

Section: Introductionmentioning

confidence: 99%

Conductive Polyaniline–Indium Oxide Composite Films Prepared by Sequential Infiltration Synthesis for Electrochemical Energy Storage

2022

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Composites of conductive polymers (CP) and metal oxides (MO) have attracted continued interest in the past decade for diverse application fields because the synergistic effects of CP and MO enable the realization of unusual electronic, electrochemical, catalytic, and mechanical properties of the composites. Herein, we present a novel method for the sequential infiltration synthesis of composite films of polyaniline (PANI) and indium oxide (InO x ) with high electrical conductivities (4−9 S/cm). The synthesized composite films were composed of two phases of graded concentration: InO x with oxygen vacancies and PANI with partially protonated molecular units. The PANI−InO x composite films displayed enhanced electrochemical activity with a pair of well-defined redox peaks. The open interfacial regions between the InO x and PANI phases may provide efficient pathways for ion diffusion and active sites for improved charge transfer.

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“…Conducting polymers are made up of single‐ and double‐bonded polymeric chains containing π‐electron backbones. They are receptive to chemical or electrochemical doping and copolymerisation [13]. Chitosan (Chi) is a naturally‐obtained biopolymer and attractive choices in biosensor fabrication, with one amino group and two hydroxyl groups in the repeating hexosamine moiety.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Detection of β‐Lactoglobulin Allergen Using Titanium Dioxide/Carbon Nanochips/Gold Nanocomposite‐based Biosensor

et al. 2021

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A label-free electrochemical immunosensor was developed for the ultra-sensitive detection of β-lactoglobulin (β-LG). The novel nanocomplex of carbon nanochips, colloidal gold nanoparticles and titanium dioxide nanoparticles TiO 2 /CNC/AuC were constructed on conducting polymer, chitosan, and were characterised using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). This nanocomplex interface was studied using cyclic voltammetry (CV) and showed great improvement at the gold electrode surface with enhanced electrochemical performance, sensitivity and selectivity for β-lactoglobulin. Under optimal parameters, the square wave voltammetry (SWV) response curve was determined from 0.01 pg/mL to 500 pg/mL using [Fe(CN) 6 ] 3À /4À ] redox probe. The calibration plot illustrates a linear relationship between log β-LG concentration and SWV current, with the limit of detection determined to be 0.01 pg/mL. This immunosensor displayed high sensitivity, selectivity, reproducibility and stability, and can be utilised for the detection of β-LG in real food samples.

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Conductive polymers and metal oxide polymeric composites for nanostructures and nanodevices

Cited by 12 publications

References 114 publications

Application of Cold Plasma in Nanofillers Surface Modification for Enhancement of Insulation Characteristics of Polymer Nanocomposites: A Review

Application of Cold Plasma in Nanofillers Surface Modification for Enhancement of Insulation Characteristics of Polymer Nanocomposites: A Review

Conductive Polyaniline–Indium Oxide Composite Films Prepared by Sequential Infiltration Synthesis for Electrochemical Energy Storage

Electrochemical Detection of β‐Lactoglobulin Allergen Using Titanium Dioxide/Carbon Nanochips/Gold Nanocomposite‐based Biosensor

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