Electrical transport properties and thermoelectric power studies of polyaniline–CaTiO3 composites

Bibi, Ariba; Shakoor, Abdul; Niaz, Niaz Ahmad; Haider, Sajjad; Akhtar, Muhammad Saeed

doi:10.1007/s00289-022-04299-8

Cited by 6 publications

(7 citation statements)

References 61 publications

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“…Since the activation energy of conductivity is a parameter characterizing transport of carriers in a sample. Therefore, based on our data and data [31][32][33]54], we can conclude that inclusion of the inorganic nanophase in the nanocomposite changes the character of transport of carriers, and matrices are characterized by high values of activation energy.…”

Section: Electrical Conductivitysupporting

confidence: 53%

“…ES-PANI has the highest values of the Arrhenius model parameters and, according to Figure 4a, this polymer has the highest value of electrical conductivity. According to the scientific literature, the polymer matrix, both semiconductor [31][32][33] and dielectric [54], had the highest activation energy value compared to the nanocomposites based on it. In [31,32,58] the high activation energy of the polymer-matrix corresponded to its lowest DC conductivity as compared to the PANI-CaTiO 3 , PPy-MCO, PVA-HgS nanocomposites, respectively.…”

Section: Electrical Conductivitymentioning

confidence: 99%

“…To investigate the mechanism of electrical conductivity in polymer nanocomposites, the Arrhenius model and the Mott variable range hopping (VRH) model are most commonly used. Although both models are valid for conductivity experiments in the low temperature region (T < 300 K) [29], these models are also used for measurements under mid temperature conditions [30][31][32][33]. Depending on the experimental data, two models can be applied at the same time [31][32][33].…”

Section: Introductionmentioning

confidence: 99%

“…Although both models are valid for conductivity experiments in the low temperature region (T < 300 K) [29], these models are also used for measurements under mid temperature conditions [30][31][32][33]. Depending on the experimental data, two models can be applied at the same time [31][32][33].…”

Section: Introductionmentioning

confidence: 99%

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Mechanochemical Synthesis and DC Electrical Conductivity of PANI-Based MWCNT Containing Nanocomposites with Te0 and Bi2Te3 Thermoelectric Nanophase

Zhmurova

Прозорова

Zvereva

2023

Powders

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Nowadays, the search for the coupled polymer nanocomposite thermoelectrics that exhibit a high value of thermoelectric figure of merit (ZT) and similar behaviour of physical properties for the use as legs of thermoelectric cells is a current challenge. The direct current (DC) conductivity is one of the three important components of thermoelectric figure of merit. The aim of this study was to obtain PANI-based nanothermoelectrics with Te0 and Bi2Te3 nanoparticles and MWCNT by mechanochemical methodology and to investigate the dependency of their DC electrical conductivity on temperature in the 298–353 K range using the Arrhenius and Mott’s variable range hopping (VRH) models. Inorganic Te0 and Bi2Te3 nanoparticles were pre-synthesized by the available and environmentally friendly method using a commercial tellurium powder. The samples obtained were characterized by X-ray diffractometry (XRD), IR and UV-Vis spectroscopy. The XRD study of ES-PANI/Te0 (4.4 wt% Te0) and ES-PANI/Bi2Te3 (2.9 wt% Bi2Te3) nanocomposites found that the nanoparticle average size was 32 nm and 17 nm, respectively. The DC conductivity study of the samples with different nanophase content (2.1, 4.4, 10.2 wt% Te0, 1.5, 2.9, 7.3 wt% Bi2Te3, 1.5 wt% MWCNT) by the two points measurement method reveals the following: (a) the presence of inorganic nanophase reduces the conductivity compared to the matrix, (b) the addition of MWCNT in ES-PANI increases its electrical conductivity, (c) the conductivity of ES-PANI/Te0 as well as ES-PANI/Bi2Te3 nanocomposite rises with the increasing inorganic nanophase content, (d) the observed increase in the electrical conductivity of MWCNT-based nanocomposites with increasing inorganic nanophase content is interrupted by a characteristic area of decrease in its value at average values of inorganic nanoparticles content (at Te0 content of 4.4 wt%, at Bi2Te3 content of 2.9 wt%), (e) a similar DC conductivity behaviour in ES-PANI/Te0—ES-PANI/Bi2Te3 and ES-PANI/Te0-MWCNT—ES-PANI/Bi2Te3-MWCNT nanocomposite pairs is observed.

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Section: Electrical Conductivitysupporting

confidence: 53%

Section: Electrical Conductivitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mechanochemical Synthesis and DC Electrical Conductivity of PANI-Based MWCNT Containing Nanocomposites with Te0 and Bi2Te3 Thermoelectric Nanophase

Zhmurova

Прозорова

Zvereva

2023

Powders

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“…These ICPs are extremely flexible and were being used in numerous research fields like electrical, electronics, electromechanical and so on [13][14][15]. Among these ICPs, polyaniline (PANI) was studied to a larger extent due to its various properties, having higher strength than other ICPs and has low cost [16][17][18]. However, in certain conditions, it was observed that PANI lose its elementary configuration.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and electrical properties of Reused-Graphite/Polyaniline composites

Faniband,

Sarvesha chandra,

Sreekanth

et al. 2024

IOP Conf. Ser.: Mater. Sci. Eng.

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Polyaniline graphite composites have been synthesized using chemical oxidative polymerization method. The graphite powder has been reused which is obtained by used batteries. XRD patterns of graphite show (002) peak and no impurity peaks. Different wt. % (5, 10, 15, 20) of graphite is used for synthesis of composites and studied their electrical conductivity. XRD patterns of composites show increasing intensity with an increasing graphite content. SEM images show plate-like morphology of graphite whereas granular-morphology for PANI. Composite samples show both plate-like morphology and granular morphology indicating that graphite is embedded in the polymer matrix. Electrical characteristics of composite samples have shown a systematic increase in conductivity with an increase in the graphite concentration. Conductive fillers within the polymer matrix can increase the overall conductivity. Higher filler content provides more conductive pathways for electrons, resulting in enhanced conductivity. The detailed studies of these results are discussed and presented in this paper.

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A critical examination of polyaniline and its composite materials: Augmenting supercapacitor performance and diversifying application potential

Rani,

Bhawna,

Ahlawat

2024

Journal of Energy Storage

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Electrical transport properties and thermoelectric power studies of polyaniline–CaTiO3 composites

Cited by 6 publications

References 61 publications

Mechanochemical Synthesis and DC Electrical Conductivity of PANI-Based MWCNT Containing Nanocomposites with Te0 and Bi2Te3 Thermoelectric Nanophase

Mechanochemical Synthesis and DC Electrical Conductivity of PANI-Based MWCNT Containing Nanocomposites with Te0 and Bi2Te3 Thermoelectric Nanophase

Synthesis and electrical properties of Reused-Graphite/Polyaniline composites

A critical examination of polyaniline and its composite materials: Augmenting supercapacitor performance and diversifying application potential

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