Effect of graphite loading on properties of polyaniline/graphite composites

Atiqah, T. N.; Tan, Soo Jin; Foo, K. L.; Supri, A.G.; Bakri, A.M. Mustafa Al; Yun-Ming, Liew

doi:10.1007/s00289-017-2031-1

Cited by 23 publications

(17 citation statements)

References 18 publications

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“…6(b) demonstrates the presence of bands of PANI. The small broad band at 3442 cm −1 represents the N-H stretching mode 45,49 . The two peaks appear around 1560 cm −1 and 1488 cm −1 are assigned to C=C stretching vibration of the quinoid ring and C=C stretching vibration of the benzenoid ring, respectively 49–51 .…”

Section: Resultsmentioning

confidence: 99%

“…The small broad band at 3442 cm −1 represents the N-H stretching mode 45,49 . The two peaks appear around 1560 cm −1 and 1488 cm −1 are assigned to C=C stretching vibration of the quinoid ring and C=C stretching vibration of the benzenoid ring, respectively 49–51 . The band at 1314 cm −1 is assigned to the C–N single bond stretching in benzenoid ring 50,51 .…”

Section: Resultsmentioning

confidence: 99%

“…The band at 1314 cm −1 is assigned to the C–N single bond stretching in benzenoid ring 50,51 . The peak at 1120 cm −1 corresponds to the vibration of (−NH + =) group resulted in the DBSA doping process of polyaniline 45,49,51 , while the peak at 783 cm −1 is associated with C–H out-of-plane bending vibrations of the para-substituted benzene ring 50–52 . The spectrum of PANI/Ag (AMPSA) NC also shows the C=O stretching peak of AMPSA monomer at 1658 cm −1 53 .…”

Section: Resultsmentioning

confidence: 99%

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Highly Luminescent Ternary Nanocomposite of Polyaniline, Silver Nanoparticles and Graphene Oxide Quantum Dots

Shokry

Khalil

Ibrahim

et al. 2019

Sci Rep

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Quantum dots (QDs) with photostability show a potential application in optical sensing and biological imaging. In this work, ternary nanocomposite (NC) of high fluorescent polyaniline (PANI)/2-acrylamido-2-methylpropanesulfonic acid (AMPSA) capped silver nanoparticles (NPs)/graphene oxide quantum dots (PANI/Ag (AMPSA)/GO QDs) have been synthesized by in situ chemical oxidative polymerization of aniline in the presence of Ag (AMPSA) NPs and GO QDs. Ag (AMPSA) NPs and GO QDs were prepared by AgNO3 chemical reduction and glucose carbonization methods, respectively. The prepared materials were characterized using UV-visible, Fourier transform infrared (FTIR), photoluminescence and Raman spectroscopies, X-Ray diffractometer (XRD) and high- resolution transmission electron microscopy (HRTEM). HRTEM micrographs confirmed the preparation of GO QDs with an average size of 15 nm and Ag (AMPSA) NPs with an average size of 20 nm. PANI/Ag (AMPSA)/GO QDs NC showed high and stable emission peak at 348 nm. This PANI/Ag (AMPSA)/GO QDs NC can emerge as a new class of fluorescence materials that could be suitable for practical sensing applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Highly Luminescent Ternary Nanocomposite of Polyaniline, Silver Nanoparticles and Graphene Oxide Quantum Dots

Shokry

Khalil

Ibrahim

et al. 2019

Sci Rep

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“…A new characteristic peak of PANI centered at 25 appeared in MS-g-PANI (644% grafting) nanohybrid representing interplanar spacing of PANI chains. 34 The 2θ peak at 20.10 represents the close-contact inter-chain distance between the planes of benzene rings in adjacent chains. The MS-g-PANI spectrum contains the characteristic peaks at 16.64 , 24.2 , 27.9 , and 34.8 corresponding to that of MS with slight position shift.…”

Section: Ft-ir Spectroscopymentioning

confidence: 99%

Synthesis and EMI shielding studies of polyaniline grafted conducting nanohybrid

Raza

Nasir

Tahir

et al. 2020

J of Applied Polymer Sci

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Polyaniline (PANI) grafted conducting nanohybrids are successfully synthesized by emulsion graft polymerization. Maximum grafting of 644% is obtained on sepiolite at optimized concentrations and reaction conditions. The Fourier transform infrared (FT‐IR) spectra of sepiolite grafted polyaniline (MS‐g‐PANI) nanohybrid revealed the presence of stretching vibrations of C=C bonds of polyaniline at 1580 and 1490 cm−1 along with the characteristic peaks of sepiolite. Increased thermal stability of the nanohybrid is observed with the increase in polyaniline grafting. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are used to study the structural changes caused by grafting. A progressive increase in electrical conductivity is observed with the increase in grafting yield. Maximum electrical conductivity of 0.427 Scm−1 is observed in the nanohybrid having 644% grafting. 24.2 dB (>99% attenuation) EMI shielding effectiveness has been exhibited by the developed nanohybrids in X‐band frequency range.

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“…Pani intercalation and pseudo-intercalation in GNS have been considered by many authors and there is no consensus on which of the two hypotheses prevails. [73][74][75][76][77][78] Intercalation processes occur by introducing a variety of small molecules between the graphite planes, allowing their expansion and significantly altering their electronic properties. However, the size of macromolecules, such as Pani, would contrast with the dimensions of the GNS interplanar spacing.…”

Section: Morphology Of the Gns/pani Nanocompositesmentioning

confidence: 99%

Graphite nanosheet/polyaniline nanocomposites: Effect of in situ polymerization and dopants on the microstructure, thermal, and electrical conduction properties

Martin

Sanches

Maraschin

et al. 2022

J of Applied Polymer Sci

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This work proposed a study of in situ polymerization of polyaniline (Pani) in the presence of graphite nanosheets (GNS). The study focused on the different physical-chemical interactions promoted among them during the Pani synthesis using different dopants (HCl and DBSA). By means of Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), thermogravimetry (TG/DTG), and DC electrical conductivity, the study demonstrated the production of nanocomposites with different electrical, thermal, and morphological properties and correlating them with the different physico-

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Effect of graphite loading on properties of polyaniline/graphite composites

Cited by 23 publications

References 18 publications

Highly Luminescent Ternary Nanocomposite of Polyaniline, Silver Nanoparticles and Graphene Oxide Quantum Dots

Highly Luminescent Ternary Nanocomposite of Polyaniline, Silver Nanoparticles and Graphene Oxide Quantum Dots

Synthesis and EMI shielding studies of polyaniline grafted conducting nanohybrid

Graphite nanosheet/polyaniline nanocomposites: Effect of in situ polymerization and dopants on the microstructure, thermal, and electrical conduction properties

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