Synthesis and electrical properties of polyaniline–cerium oxide composites

Ashwini, Indavara Shivarudregowda; Pattar, Jayadev; Anjaneyulu, P.; Prakashbabu, D.; Sreekanth, R.; Manohara, S.R.; Nagaraja, M.

doi:10.1016/j.synthmet.2020.116588

Cited by 22 publications

(4 citation statements)

References 35 publications

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“…The samples are kept in an oven at 50–60°C for 12 h and finally, dark green colored PANI powder was obtained. [ 24 ]…”

Section: Methodsmentioning

confidence: 99%

“…PANI is a future material for microelectronic devices, chemical, and biological sensors, actuators, and so forth. [1][2][3][4][5][6][7][8] In recent years, the focus of the investigation has been on PANI composites consists of different materials like CNT, [9] metal oxides, [10] nitrates, [11] sulfides, [12] and so forth to produce new materials with exciting physical and chemical properties. The exploration of composites of PANI has received great interest from various researchers, industries across the globe [10,11,13] especially for supercapacitor applications.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8] In recent years, the focus of the investigation has been on PANI composites consists of different materials like CNT, [9] metal oxides, [10] nitrates, [11] sulfides, [12] and so forth to produce new materials with exciting physical and chemical properties. The exploration of composites of PANI has received great interest from various researchers, industries across the globe [10,11,13] especially for supercapacitor applications. [14,15] The inorganic fillers are expected to modify drastically the electrical, optical, and dielectric properties of the polymer.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, electrical, and dielectric properties of novel polyaniline/strontium di‐nitrate composites

Ashwini

Pattar

Sreekanth³

et al. 2021

Polymer Composites

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Polyaniline (PANI) and polyaniline/strontium di-nitrate [Sr(NO 3 ) 2 ] composites were synthesized by in-situ chemical oxidative polymerization. The composites with different weight percentages of Sr(NO 3 ) 2 were synthesized for the study of the charge transport mechanism. Interaction between Sr(NO 3 ) 2 and the PANI was confirmed from the observed peak shift to a lower wavelength in the FTIR spectra. DC conductivity of composites decreased with an increase in the concentrations of Sr(NO 3 ) 2 . The exponent values, 0.64 < s < 0.75, calculated from Jonscher universal power-law using AC conductivity forecasts the hopping conduction mechanism. The complex impedance studies showed two semicircles in the Nyquist plot and simulated to an equivalent circuit by constant-phase element (CPE). The relaxation time for pristine PANI was 2.28 μs, whereas a higher relaxation time of 18.5 μs was observed with 40 wt% Sr(NO 3 ) 2 , doped composite.The values of dielectric constant, and dielectric loss decreased with increasing frequency and increasing Sr(NO 3 ) 2 wt%. Therefore, the results obtained for Sr(NO 3 ) 2 doped PANI composites are of scientific and technological interest.

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“…The samples are kept in an oven at 50–60°C for 12 h and finally, dark green colored PANI powder was obtained. [ 24 ]…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis, electrical, and dielectric properties of novel polyaniline/strontium di‐nitrate composites

Ashwini

Pattar

Sreekanth³

et al. 2021

Polymer Composites

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“…Synthesis of PANI/Graphite was carried out as described in Ashwini et al, [22] with little modifications. Briefly, PANI/Graphite nanocomposites were prepared according to as described above.…”

Section: Synthesis Of Pani/graphite Compositementioning

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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