Efficient and large-scale synthesis of few-layered graphene using an arc-discharge method and conductivity studies of the resulting films

Wu, Yingpeng; Wang, Bin; Ma, Yanfeng; Huang, Yi; Li, Na; Zhang, Fan; Chen, Yongsheng

doi:10.1007/s12274-010-0027-3

Cited by 285 publications

(137 citation statements)

References 36 publications

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“…27 The two-dimensional band is generally very sensitive to the number of graphitic layers that compose the graphene sheets when this number is smaller than four. For numbers higher than four, the two-dimensional band has a Lorentzian shape, with the width at half height of 85 cm −1 for graphene synthesized by arc discharge, 28 90 cm −1 for samples grown by the chemical vapor deposition method, 29 and about 100 cm…”

Section: Resultsmentioning

confidence: 99%

Few-layer graphene sheets with embedded gold nanoparticles for electrochemical analysis of adenine

Biriş

Pruneanu²,

Pogăcean³

et al. 2013

IJN

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This work describes the synthesis of few-layer graphene sheets embedded with various amounts of gold nanoparticles (Gr-Au-x) over an Au x /MgO catalytic system (where x = 1, 2, or 3 wt%). The sheet-like morphology of the Gr-Au-x nanostructures was confirmed by transmission electron microscopy and high resolution transmission electron microscopy, which also demonstrated that the number of layers within the sheets varied from two to seven. The sample with the highest percentage of gold nanoparticles embedded within the graphitic layers (Gr-Au-3) showed the highest degree of crystallinity. This distinct feature, along with the large number of edge-planes seen in high resolution transmission electron microscopic images, has a crucial effect on the electrocatalytic properties of this material. The reaction yields (40%-50%) and the final purity (96%-98%) of the Gr-Au-x composites were obtained by thermogravimetric analysis. The Gr-Au-x composites were used to modify platinum substrates and subsequently to detect adenine, one of the DNA bases. For the bare electrode, no oxidation signal was recorded. In contrast, all of the modified electrodes showed a strong electrocatalytic effect, and a clear peak for adenine oxidation was recorded at approximately +1.05 V. The highest increase in the electrochemical signal was obtained using a platinum/Gr-Au-3-modified electrode. In addition, this modified electrode had an exchange current density (I 0 , obtained from the Tafel plot) one order of magnitude higher than that of the bare platinum electrode, which also confirmed that the transfer of electrons took place more readily at the Gr-Au-3-modified electrode.

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Section: Resultsmentioning

confidence: 99%

Few-layer graphene sheets with embedded gold nanoparticles for electrochemical analysis of adenine

Biriş

Pruneanu²,

Pogăcean³

et al. 2013

IJN

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“…Besides the mixed H 2 -based buffer gas, the CO 2 /He buffer gas has also been used to synthesize few-layered graphene by arc discharge. [61] Wang et al [62] demonstrated that largescale graphene nanosheets can be obtained by arc discharge in an air atmosphere, which is more effective and cheaper than traditional arc discharge method. It was found that high air pressure facilitates the graphene growth.…”

Section: Pure Graphenementioning

confidence: 99%

Carbon nanomaterials synthesized by arc discharge hot plasma

Zhang

2015

Carbon

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“…15,25,26 The production of bulk quantities with high yield and contained costs is achievable despite the low-to-medium quality of the obtained material due to the presence of both extrinsic defects; O-and H-containing groups, and intrinsic defects; edges and deformations. Alternative techniques are available for producing commercially available graphene for EESDs such as carbon nanotube unzipping 27 or direct arc-discharge 28 rather than using liquid-phase exfoliation and reduction of GO.…”

Section: Graphene Growthmentioning

confidence: 99%

Review—Critical Considerations of High Quality Graphene Synthesized by Plasma-Enhanced Chemical Vapor Deposition for Electronic and Energy Storage Devices

Azam

Zulkapli

Dorah

et al. 2017

ECS J. Solid State Sci. Technol.

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Graphene is a promising electrode material not only due to its intrinsic properties like good electrical conductivity, high mechanical strength and high chemical stability, but also because of its high theoretical surface area of 2630 m 2 g −1 . In this report, the effect of CVD parameters to the growth of high quality graphene on metal substrates by using plasma enhanced chemical vapor deposition (PECVD) was extensively studied. Interestingly, synthesizing high quality graphene by PECVD technique is not only depending on the CVD parameters, but also depending on the catalysts and its plasma sources. It was found that Ni and Cu are the most favored metal catalysts for PECVD graphene growth. With high solubility of carbon (> 0.1 at. %), Ni effectively promote the growth of multilayer graphene by PECVD. However, large-area synthesis has made relatively inexpensive Cu as one of the most attractive substrates for monolayer graphene growth. Further details on the potential use of different transition metal catalysts in synthesizing graphene and consequently the specific usage of graphene based devices are discussed in this report.

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Efficient and large-scale synthesis of few-layered graphene using an arc-discharge method and conductivity studies of the resulting films

Cited by 285 publications

References 36 publications

Few-layer graphene sheets with embedded gold nanoparticles for electrochemical analysis of adenine

Few-layer graphene sheets with embedded gold nanoparticles for electrochemical analysis of adenine

Carbon nanomaterials synthesized by arc discharge hot plasma

Review—Critical Considerations of High Quality Graphene Synthesized by Plasma-Enhanced Chemical Vapor Deposition for Electronic and Energy Storage Devices

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