Preparation of poly(3-hexylthiophene)/graphene nanocomposite via in situ reduction of modified graphite oxide sheets

Yang, Zhenglong; Shi, Xujing; Yuan, Junjie; Pu, Hongting; Liu, Yongsheng

doi:10.1016/j.apsusc.2010.06.051

Cited by 79 publications

(43 citation statements)

References 23 publications

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“…Polymers are often combined with graphene, as polymer nanocomposites for improved dispersion and solubility in organic solvents 15, 16. Specifically, π‐electron rich polymers as matrix were used because of its ability to form π‐stacking with the graphene sheets.…”

Section: Introductionmentioning

confidence: 99%

Films of Highly Disperse Electrodeposited Poly(N‐vinylcarbazole)–Graphene Oxide Nanocomposites

Santos

Tria

Vergara

et al. 2011

Macro Chemistry & Physics

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The electrodeposition of polymer nanocomposite thin fi lms of PVK-GO is demonstrated. Highly exfoliated and stable graphene oxide (GO) solutions are prepared by incorporating poly( N -vinylcarbazole) (PVK) through mixing. Enhanced stability up to 30 d is observed in both aqueous and organic solvents. TGA, XRD, FTIR, and UV-vis measurements confi rm nanocomposite formation. CV enables electrodeposition of the fi lms. The presence of GO on the PVK-GO surface is confi rmed by the appearance of the C = O and OH stretching vibrations, attributed to the carboxylic and hydroxyl groups of GO. AFM measurements show homogeneous and well-defi ned fi lm morphology.versatility. This two-dimensional single-atom-thick nanomaterial of hexagonally arrayed sp 2 -bonded carbon atoms exhibits high aspect ratio, outstanding electrical conductivity, mechanical stability, and cost effi ciency. [2][3][4][5][6][7][8][9] With such unique properties and the spectrum of possible applications, graphene has been recognized as one of the most promising nanomaterials. However, just as with the newly discovered allotropes of carbon, the availability and processability have been the rate-determining factors in the evaluation of graphene applications.A major challenge in working with graphene involves achieving homogeneous dispersions for large-scale coating fabrication. For example, in the creation of graphene-organic composites, thin graphitic layers require exfoliated graphite sheets. The non-dispersibility of graphite in aqueous medium and in organic solvents leads to the diffi culty of working directly with graphite. The most common and effective approach is based on the use of graphene oxide (GO) as a precursor. [ 3 , 8-11 ] Compared to its pristine counterpart, GO contains oxygen functional groups (i.e., epoxides, -OH, and -COOH group), [12][13][14] which make it hydrophilic and disperse well even in aqueous solutions. However, aqueous dispersion of graphene is of limited interest because in most of its proposed applications (electronics, sensors, and composites), organic solvents are normally required in the processing

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Section: Introductionmentioning

confidence: 99%

Films of Highly Disperse Electrodeposited Poly(N‐vinylcarbazole)–Graphene Oxide Nanocomposites

Santos

Tria

Vergara

et al. 2011

Macro Chemistry & Physics

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“…As shown in Figure 2, the significant quenching of the NA fluorescence by rGO was caused by effective photoinduced charge transfer between these components, [11] which demonstrated that the NA was noncovalently adhered to the surface of rGO, and the p stacking of NA greatly enhanced the aqueous solubility of AgNP-NA-rGO. As shown in Figure 2, the significant quenching of the NA fluorescence by rGO was caused by effective photoinduced charge transfer between these components, [11] which demonstrated that the NA was noncovalently adhered to the surface of rGO, and the p stacking of NA greatly enhanced the aqueous solubility of AgNP-NA-rGO.…”

mentioning

confidence: 99%

Sodium 1‐Naphthalenesulfonate‐Functionalized Reduced Graphene Oxide Stabilizes Silver Nanoparticles with Lower Cytotoxicity and Long‐Term Antibacterial Activity

Cai

Tan

et al. 2012

Chemistry An Asian Journal

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Silver nanoparticles (AgNPs) are increasingly used in daily life for their antibacterial properties, but their low stability and high cytotoxicity hamper practical applications. In this work, sodium 1-naphthalenesulfonate-functionalized reduced graphene oxide (NA-rGO) was used as a substrate for AgNPs to produce a AgNP-NA-rGO hybrid. This hybrid showed substantially higher antibacterial activity than polyvinyl pyrrolidone (PVP)-stabilized AgNPs, and the AgNPs on NA-rGO were more stable than the AgNPs on PVP, resulting in long-term antibacterial effects. More importantly, this hybrid showed excellent water solubility and low cytotoxicity, suggesting the great potential application as sprayable reduced graphene oxide based antibacterial solutions.

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“…Limitations in the performance of solution processable P3HT based FETs could be overcome by combining the P3HT organic polymer with a graphene based material, [16]. Thus a graphene/P3HT nanocomposite semiconductor material with higher charge carrier mobility can improve the organic FET (OFET) device performance, [17].…”

Section: Introductionmentioning

confidence: 99%

Isocyanate functionalized graphene/P3HT based nanocomposites

Obreja

Cristea

Gavrıla

et al. 2013

Applied Surface Science

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Preparation of poly(3-hexylthiophene)/graphene nanocomposite via in situ reduction of modified graphite oxide sheets

Cited by 79 publications

References 23 publications

Films of Highly Disperse Electrodeposited Poly(N‐vinylcarbazole)–Graphene Oxide Nanocomposites

Films of Highly Disperse Electrodeposited Poly(N‐vinylcarbazole)–Graphene Oxide Nanocomposites

Sodium 1‐Naphthalenesulfonate‐Functionalized Reduced Graphene Oxide Stabilizes Silver Nanoparticles with Lower Cytotoxicity and Long‐Term Antibacterial Activity

Isocyanate functionalized graphene/P3HT based nanocomposites

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