Structural, electrical and electrochemical parameters of PEO–NaClO3 composite for battery applications

Rajendra, D.; Roy, Aashis S.; Parveen, Ameena

doi:10.1016/j.compositesb.2013.04.004

Cited by 11 publications

(8 citation statements)

References 24 publications

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“…The presence of defect in mixed oxides helps in hopping and tunnelling of charge carriers through conducting paths. [11,12] The leakage currents in Nb 2 O 3 were reduced by depositing thin alternate layers of Al 2 O 3 , thereby increasing the number of interfaces between distinct oxide layers. The electrical permittivity of PANI-Nd 2 O 3 :Al 2 O 3 composites can be enhanced by increasing the concentration of Nd 2 O 3 without a considerable loss in resistivity.…”

Section: Introductionmentioning

confidence: 99%

“…A semiconducting oxide such as Nb 2 O 3 can be used as a dopant because of its relatively low band gap and tunable electrical and mechanical properties because of the presence of various valence states. The presence of defect in mixed oxides helps in hopping and tunnelling of charge carriers through conducting paths . The leakage currents in Nb 2 O 3 were reduced by depositing thin alternate layers of Al 2 O 3 , thereby increasing the number of interfaces between distinct oxide layers.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis, characterization, dielectric and rectification properties of PANI/Nd₂O₃:Al₂O₃nanocomposites

Ansari¹,

Khasim

Parveen³

et al. 2016

Polym. Adv. Technol.

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nanocomposites were prepared by in situ oxidative polymerization method using different weight percentages of oxide powders. The prepared nanocomposites were characterized by Fourier transform infrared spectroscopy and X-ray diffraction for molecular and crystal structures. Scanning electron microscopy and transmission electron microscopy images show the tubular structure of polyaniline nanocomposite with embedded metal oxides. The electrical conductivity of the nanocomposites increases with increase in temperature as well as with concentration of Nd 2 O 3 :Al 2 O 3 particles in polyaniline. This is because of the hopping of charge polarons and extended chain length of the nanocomposites as evidenced by the negative thermal coefficient (NTC) characteristic. A high NTC value of 2.67 was found in nanocomposites with 15 wt% of oxide particles. These nanocomposites show low dielectric constant and dielectric loss; the electrical conductivity is higher than 0.3 S/cm as confirmed by Cole-Cole plot that indicates a decrease in both grain resistance and bulk resistance of the nanocomposites. The current-voltage and capacitance-voltage measurements were also carried out. The carrier mobility μ values of pure polyaniline and nanocomposites were found to be 4.27 × 10 À3 and 1.45 × 10 -2 H.M À1 , respectively. A significant enhancement in carrier mobility was observed in comparison with the literature.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, dielectric and rectification properties of PANI/Nd₂O₃:Al₂O₃nanocomposites

Ansari¹,

Khasim

Parveen³

et al. 2016

Polym. Adv. Technol.

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“…Fig. 1(a) shows the FTIR spectra of pure O-chloropolyaniline and is observed that characteristic peaks around 2922 cm À1 corresponds to CAH stretching of aromatic ring, 1566 cm À1 is due to the C@C stretching vibration of quinoid ring, 1493 cm À1 for stretching vibration of benzenoid ring, 1406 cm À1 is the characteristic mode of vibration of CAH bonding of aromatic nuclei, 1302 cm À1 assigned for the stretching of CAN bonds of aromatic amine, 1142 cm À1 is one of the important peaks assigned for measure of degree of delocalization of electron in aromatic ring, 796 cm À1 corresponds to NAH rocking vibration mode out of the plain, 592 cm À1 and 472 cm À1 are due to the bonding of CAH in aromatic ring out of the plain respectively [11][12][13]. Fig.…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

Conductivity of surface modified TiO 2 dope nanocomposites

Nagaraju

Roy²,

Ramgopal³

2015

Measurement

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“…Figure 1(a) shows the FTIR spectra of pure O-chloropolyaniline and is observed that characteristic peaks around 2922 cm −1 corresponds to C H stretching of aromatic ring, 1566 cm −1 is due to the C C stretching vibration of quinoid ring, 1493 cm −1 for stretching vibration of benzenoid ring, 1406 cm −1 is the characteristic mode of vibration of C H bonding of aromatic nuclei, 1302 cm −1 assigned for the stretching of C N bonds of aromatic amine, 1142 cm −1 is one of the important peaks assigned for measure of degree of delocalization of electron in aromatic ring, 796 cm −1 corresponds to N H rocking vibration mode out of the plain, 592 cm −1 and 472 cm −1 are due to the bonding of C H in aromatic ring out of the plain respectively [11][12][13]. Figure 1(b-f) shows the FTIR spectra of O-chloropolyaniline/TiO 2 nanocomposite.…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 99%

Dielectric Properties of Surface Modified TiO₂Doped Ortho-chloropolyaniline Nanocomposites

Nagaraju

Roy²,

Ramgopal³

2015

Ferroelectrics Letters Section

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Dielectric properties of TiO 2 nanoparticles doped O-chloropolyaniline nanocomposites have been prepared using camphorsulfonic acid. The prepared composites were characterized by FTIR for structural studies, SEM and TEM for surface morphology. The characteristic peaks of benzeniod ring, quiniod ring and metal oxde confirms the formation of nanocomposites. TEM image shows that the TiO 2 nanoparticles are about 10 nm embedded in OPANI. The conductivity increases due to the hopping of charges is confirmed by DC conductivity. Among all composites, 15 wt% of nanocomposites shows high DC conductivity 4 ×10 −3 S/cm compare to other compositions. The dielectric constant decreases as a function of applied frequency due to the multiple polarizations occur in polymer nanocomposites. Among all composites 15 wt% of O-chloropolyaniline/TiO 2 nanocomposite shows low dielectric constant and high AC conductivity of 0.3 S/cm. Tangent losses of these very low that is 2.5 and it almost constant after 10 5 Hz hence these materials would be great importance in low k -dielectric application. Therefore these composites are suitable for electronic applications.

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Structural, electrical and electrochemical parameters of PEO–NaClO3 composite for battery applications

Cited by 11 publications

References 24 publications

Synthesis, characterization, dielectric and rectification properties of PANI/Nd₂O₃:Al₂O₃nanocomposites

Synthesis, characterization, dielectric and rectification properties of PANI/Nd₂O₃:Al₂O₃nanocomposites

Conductivity of surface modified TiO 2 dope nanocomposites

Dielectric Properties of Surface Modified TiO₂Doped Ortho-chloropolyaniline Nanocomposites

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Structural, electrical and electrochemical parameters of PEO–NaClO3 composite for battery applications

Cited by 11 publications

References 24 publications

Synthesis, characterization, dielectric and rectification properties of PANI/Nd2O3:Al2O3nanocomposites

Synthesis, characterization, dielectric and rectification properties of PANI/Nd2O3:Al2O3nanocomposites

Conductivity of surface modified TiO 2 dope nanocomposites

Dielectric Properties of Surface Modified TiO2Doped Ortho-chloropolyaniline Nanocomposites

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Synthesis, characterization, dielectric and rectification properties of PANI/Nd₂O₃:Al₂O₃nanocomposites

Synthesis, characterization, dielectric and rectification properties of PANI/Nd₂O₃:Al₂O₃nanocomposites

Dielectric Properties of Surface Modified TiO₂Doped Ortho-chloropolyaniline Nanocomposites