A dehydration and stabilizer-free approach to production of stable water dispersions of graphene nanosheets

Chen, Jinlong; Yan, Xiu‐Ping

doi:10.1039/c000177e

Cited by 120 publications

(95 citation statements)

References 32 publications

(39 reference statements)

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“…1B. As could be seen, the EGO (curve b) showed a strong absorption peak at 231 nm and a shoulder peak at 300 nm, which corresponded to → * transitions of aromatic C C bond and n → * transition of C O bond, respectively (Chen and Yan, 2010). After decorated with AuNPs, AuNPs/PDDA-EGO showed a characteristic peak of AuNPs at 531 nm which indicated the capture of AuNPs.…”

Section: Characterization Of the Compositementioning

confidence: 94%

Graphene-assisted dual amplification strategy for the fabrication of sensitive amperometric immunosensor

Liu

Zhang

Wang

et al. 2011

Biosensors and Bioelectronics

112

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Section: Characterization Of the Compositementioning

confidence: 94%

Graphene-assisted dual amplification strategy for the fabrication of sensitive amperometric immunosensor

Liu

Zhang

Wang

et al. 2011

Biosensors and Bioelectronics

112

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“…2. The absorption peak due to p-p* transition of C=C band and np* transition of C=O band have been occurred around 250-300 nm [6,7]. This absorption features are seen due to surface plasmon resonance (SPR) in the free electron cloud of carbonaceous material p electrons [8].…”

Section: Resultsmentioning

confidence: 99%

Influence of size and morphology on the optical properties of carbon nanostructures

Sadeghi

Dorranian

2015

J Theor Appl Phys

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Optical properties of carbon nanostructures produced by laser ablation method in different liquid environments have been studied experimentally. In this work we used a 7 ns fundamental wavelength of pulsed Nd:YAG laser at 1064 nm and 10 Hz repetition rate to produce carbon nanostructures including graphene in distilled water, acetone, alcohol, and CTAB. Structure and morphology of carbon nanostructures were studied using their UV-Vis-NIR spectrum, TEM images, and Raman scattering spectrum. Results show that in our experimental condition distilled water was the most capable medium for producing graphene. Color of suspensions varied with the amount of carbon nanoparticles in the suspension while the bandgap energy of samples decreases with increasing the amount of graphene.

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“…Thus, people also tried to compare the purity of their products by comparing the ratio of C/O, C/(O + N), etc. These heteroatoms do infl uence the electrical conductivity as well, such as residual C-N groups can act as n-type dopants [ 74 ].…”

Section: Comparison Of Reduction Recipesmentioning

confidence: 99%

“…For example, octadecylamine was used to react with GO and offered a colloidal dispersion of functionalized GO (FGO) in organic solvents [ 122 ]. Hexylamine was also used to attack the epoxy rings on GO to form alkylated GO which can further be reduced into alkylated conductive graphene paper [ 74 ]. Ethylenediamino-β-cyclodextrin was also introduced to attach cyclodextrin onto GO surface via amine-epoxy reaction (Fig.…”

Section: Covalentmentioning

confidence: 99%

The Chemistry of Graphene Oxide

2015

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In this chapter, we discuss a variety of chemical reactions introduced for GO. Among all studies on the chemistry of GO, the largest portion focused on the reduction of GO back to graphene, mainly due to its high relevance to graphene and the gold rush of graphene research over the last decade. However, doping, functionalization and cross-linking of GO are equally, if not more, interesting to chemists, since GO is a giant model compound of polycyclic aromatic hydrocarbon (PAH) oxides. Here, we start with a thorough comparison between various reducing recipes for GO, and follow with some theoretical simulations and predictions on its convertibility toward graphene. In addition to that, we elaborate on extended chemical modifi cations (covalent and non-covalent), cross-linking, and doping recipes for this macromolecule shown in literature. After all, we intend to show you that GO became a relatively hot research topic, not only due to its relevance to graphene, but also for its high chemical activity and tunability, which enabled the prosperity of its research in various fi elds led by chemists, materials scientists, biologists, physicists, as well as engineers. It is a perfect paradigm for young researchers as an important subject thrived in interdisciplinary research. After all, when real-life problems come, potential solutions do not impose boundaries between disciplines. All relevant disciplines can offer their input, and contribute together to the fi nal solutions, in which cases communications and collaborations between different researchers need to be encouraged and appreciated.

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A dehydration and stabilizer-free approach to production of stable water dispersions of graphene nanosheets

Cited by 120 publications

References 32 publications

Graphene-assisted dual amplification strategy for the fabrication of sensitive amperometric immunosensor

Graphene-assisted dual amplification strategy for the fabrication of sensitive amperometric immunosensor

Influence of size and morphology on the optical properties of carbon nanostructures

The Chemistry of Graphene Oxide

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