Preparation of Reduced Graphene Oxide/Polyaniline Composite Conductive Materials by Ultrasonic-Assisted In Situ Polymerization

Cui, Bo; Gao, Xuekai

doi:10.1007/s11664-022-09855-6

Cited by 2 publications

(4 citation statements)

References 29 publications

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“…As shown in Figure c, it is found that smooth GO surfaces are covered with rods of PANI, implying the formation of a core–shell structure . It could be attributed to the fact that GO, as a nucleation carrier, influences the polymerization process of PANI . A spot of rodlike PANI on the surface of GO can be observed in Figure g, resulting from the limited influence of GO during the polymerization procedure.…”

Section: Results and Discussionmentioning

confidence: 85%

“…28 It could be attributed to the fact that GO, as a nucleation carrier, influences the polymerization process of PANI. 21 A spot of rodlike PANI on the surface of GO can be observed in Figure 2g, resulting from the limited influence of GO during the polymerization procedure. However, in the SEM image of IL@PGO (Figure 2d), it is difficult to find the rodlike PANI, resulting from the fact that ILs can improve the interaction between GO and PANI.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Compared to pure GO, the C−O peak area corresponding to the PGO composite material is significantly increased, and there is a π−π* interaction peak. 21,34 This can be explained by the fact that the monomers of PANI are adsorbed and polymerized on the surface of GO and through π-bonding and electrostatic interactions. 34 Notably, for IL@ PGO nanomaterials, the weakened π−π* interaction peak confirms the conjecture that π-bonding is reduced by the added ILs.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Huang reported AM and N -acryloyl-11-aminoundecanoic acid copolymer hydrogels with AgNW frameworks that exhibit excellent EMI shielding (66 dB) and excellent strain sensitivity (response time 162 ms). Polyaniline (PANI) has attracted increasing attention as a widely used conductive polymer with a wide conductivity range, excellent environmental properties, and outstanding chemical stability. ,− Cui fabricated a functionalized graphene/PANI hybrid hydrogel with two networks, which exhibits high mechanical strength, high resilience, and good electrochemical properties. However, it is difficult for PANI to disperse uniformly in the solution of a hydrophilic polymer, and it is limited by poor electrical stability …”

Section: Introductionmentioning

confidence: 99%

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Enhanced Sensing and Electromagnetic Interference Shielding Performance of Hydrogels by the Incorporation of Ionic Liquids

Hu,

Cheng,

Wei

et al. 2024

ACS Appl. Electron. Mater.

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Conductive polymer hydrogel-based sensors with high-performance electromagnetic interference shielding effectiveness (EMI SE) have attracted much attention. In this field, the tremendous challenge is achieving an even dispersion of the conductive fillers in order to enhance their sensitivity and SE. Herein, ionic liquids (ILs), the ionic conductors, are chosen to optimize the morphology of polyaniline (PANI) on graphene oxide (GO) and improve the dispersion of PANI@GO (PGO) in sodium alginate/polyacrylamide (SA/PAM) hydrogels. Because of the presence of an electron−ion conductive network, the resulting SA/ PAM/IL@PGO hydrogels exhibit a conductivity of 0.13 S/m, which is 21.7 times higher than that of SA/PAM/PGO hydrogels. This outstanding electron−ion conductivity endows the SA/PAM/IL@PGO hydrogels with an EMI SE of 53.6 dB and a low reflection coefficient, indicating excellent green shielding ability. More importantly, the gauge factor of resulting SA/PAM/IL@PGO hydrogels reaches 3.03, suggesting high sensitivity, so they can be used as strain sensors to monitor vigorous bodily movements. This work provides a strategy for fabricating hydrogels as high-sensitivity sensors with a high-performance shielding capability.

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Section: Results and Discussionmentioning

confidence: 85%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced Sensing and Electromagnetic Interference Shielding Performance of Hydrogels by the Incorporation of Ionic Liquids

Hu,

Cheng,

Wei

et al. 2024

ACS Appl. Electron. Mater.

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Tailoring reduced graphene oxide into nanofibrous architectures: fabrication, characterization, and functional insights

Rehman,

Anwar,

Ahmed

et al. 2024

Zeitschrift Für Naturforschung A

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The electrospinning process allows the production of nanofibers from polymer solutions, making them suitable for various applications such as sensors, electronic devices, conductive materials, and advanced composites for high-temperature environments. In this research, polyaniline (PANI) was doped with camphor sulfonic camphor sulfonic acid (HCSA). HCSA dopant is used to modify the electrical and structural properties of polyaniline. To introduce reduced graphene oxide as a nanofiller to enhance the electrical properties of the polymer. Both the HCSA-doped PANI and HCSA-doped PANI with rGO nanofibers were electro-spun separately to create individual nanofibers. Fourier-transform infrared spectroscopy was used to investigate the chemical composition and functional groups present in the nanofibers. Field emission scanning electron microscopy was employed to study the nanofibers’ morphology, structure, and surface characteristics. Thermogravimetric analysis was used to assess the thermal stability of the nanofibers and to approximate the content of rGO. These results indicate that the addition of reduced graphene oxide (rGO) led to improvements in the nanofibers’ electrical conductivity and thermal stability.

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Preparation of Reduced Graphene Oxide/Polyaniline Composite Conductive Materials by Ultrasonic-Assisted In Situ Polymerization

Cited by 2 publications

References 29 publications

Enhanced Sensing and Electromagnetic Interference Shielding Performance of Hydrogels by the Incorporation of Ionic Liquids

Enhanced Sensing and Electromagnetic Interference Shielding Performance of Hydrogels by the Incorporation of Ionic Liquids

Tailoring reduced graphene oxide into nanofibrous architectures: fabrication, characterization, and functional insights

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