Graphene–inorganic nanocomposites

Bai, Song; Shen, Xiaoping

doi:10.1039/c1ra00260k

Cited by 567 publications

(344 citation statements)

References 545 publications

(584 reference statements)

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“…31,32 A lack of knowledge in graphene chemistry prevented a significant advancement of this field for a long time.…”

Section: Properties and Applicationsmentioning

confidence: 99%

“…203 The majority of graphene-based nanocomposites are comprised of only two components, but multicomponent composites have been prepared for special applications as well. 32 Although a variety of second components have been involved, the architectures of the graphene based composites can be classified into three types 31 : i) composites, graphene sheets form a continuous phase and act as a substrate for supporting a second component, which adheres to the graphene sheets. ii) This second components is typically an inorganic nanoparticle (e.g.…”

Section: Properties and Applicationsmentioning

confidence: 99%

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Graphene based metal and metal oxide nanocomposites: synthesis, properties and their applications

et al. 2015

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“…31,32 A lack of knowledge in graphene chemistry prevented a significant advancement of this field for a long time.…”

Section: Properties and Applicationsmentioning

confidence: 99%

Section: Properties and Applicationsmentioning

confidence: 99%

Graphene based metal and metal oxide nanocomposites: synthesis, properties and their applications

et al. 2015

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“…24 The metal oxide nanoparticles (MOsN) based nanocomposites with carbonaceous materials, including RGO, have been found to display improved electronic properties that play a vital role in the fabrication of electrochemical biosensors. [25][26][27][28] It has been reported that the use of MOsN and GO nanocomposites may result in improved biosensor efficacy compared to when a single component is used. [29][30][31][32][33] Recently, a GO and titanium oxide (TiO 2 ) nanocomposite has been explored for the development of lithium ion batteries, photocatalysts and dye sensitized solar cells.…”

Section: Introductionmentioning

confidence: 99%

Reduced graphene oxide–titania based platform for label-free biosensor

et al. 2014

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A label-free biosensor has been fabricated using a reduced graphene oxide (RGO) and anatase titania (antTiO 2 ) nanocomposite, electrophoretically deposited onto an indium tin oxide coated glass substrate. The RGO-ant-TiO 2 nanocomposite has been functionalized with protein (horseradish peroxidase) conjugated antibodies for the specific recognition and detection of Vibrio cholerae. The presence of Ab-Vc on the RGO-ant-TiO 2 nanocomposite has been confirmed using electron microscopy, Fourier transform infrared spectroscopy and electrochemical techniques. Electrochemical studies relating to the fabricated Ab-Vc/RGO-ant-TiO 2 /ITO immunoelectrode have been conducted to investigate the binding kinetics.This immunosensor exhibits improved biosensing properties in the detection of Vibrio cholerae, with a sensitivity of 18.17 Â 10 6 F mol À1 L À1 m À2 in the detection range of 0.12-5.4 nmol L À1 , and a low detection limit of 0.12 nmol L À1 . The association (k a ), dissociation (k d ) and equilibrium rate constants have been estimated to be 0.07 nM, 0.002 nM and 0.41 nM, respectively. This Ab-Vc/RGO-ant-TiO 2 /ITO immunoelectrode could be a suitable platform for the development of compact diagnostic devices.

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“…This method results in good quality graphene nanoplatelets with electrical conductivity up to 2420 S/m -the electrical conductivity of GO is only about 0.02 S/m (15). The reduction degree of graphene nanoplatelets is higher when the reduction is carried out in organic solvent (such as DMF, NMP) with hydrazine hydrate, this can result in conductivity up to 16,000 S/m (16).…”

Section: Introductionmentioning

confidence: 92%

Preparation and properties of chemically reduced graphene oxide/copolymer-polyamide nanocomposites

et al. 2016

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Abstract:To enhance the physical properties of copolymer-polyamide (CO-PA), a sequence of nanocomposites based upon CO-PA and chemically reduced graphene oxide (CRGO) nanoplatelets were prepared by in-situ reduction using hydrazine hydrate. Graphene oxide (GO), prepared by the improved Hummers method, was used to fabricate CRGO nanaoplatelets. Atomic-force microscopy (AFM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) analysis showed that the thickness and the width of GO was about 0.9 nm and 1 μm, respectively. An abundance of oxygen-containing functional groups were introduced onto the GO sheets. XRD and SEM analysis showed that CRGO nanoplatelets were well dispersed in the CO-PA matrix with the appropriate CRGO content. TGA and DSC analysis demonstrated that CRGO nanoplatelets can significantly improve the thermal stability, glass-transition temperature, crystallization temperature of the composites. The mechanical properties of the nanocomposites were improved significantly with the appropriate increment of CRGO nanoplatelets content, though the elongation at break of the composites decreased with the increase of CRGO nanoplatelets content. The electrical conductivity test showed a significant increase in electrical conductivity from an insulator to almost a semiconductor with increasing CRGO nanoplatelets content. And at 1.0 wt% CRGO content, the electrical percolation threshold of the nanocomposites was found.

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Graphene–inorganic nanocomposites

Cited by 567 publications

References 545 publications

Graphene based metal and metal oxide nanocomposites: synthesis, properties and their applications

Graphene based metal and metal oxide nanocomposites: synthesis, properties and their applications

Reduced graphene oxide–titania based platform for label-free biosensor

Preparation and properties of chemically reduced graphene oxide/copolymer-polyamide nanocomposites

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