Mechanisms of graphene growth by chemical vapour deposition on transition metals

Seah, Choon-Ming; Chai, Siang‐Piao; Mohamed, Abdul Rahman

doi:10.1016/j.carbon.2013.12.073

Cited by 300 publications

(242 citation statements)

References 202 publications

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“…There are two approaches to graphene fabrication: top-down one such as the mechanical [13] or chemical graphite exfoliation [14,15], and bottom-up one such as chemical vapor deposition (CVD) of organic precursors [16] or silicon carbide thermal decomposition [17].…”

Section: Introductionmentioning

confidence: 99%

Graphene/Na carboxymethyl cellulose composite for Li-ion batteries prepared by enhanced liquid exfoliation

Naboka

Yim

Abu-Lebdeh

2016

Materials Science and Engineering: B

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Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1016/j.mseb.2016.04.003Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Graphene/Na carboxymethyl cellulose composite for Li-ion batteries prepared by enhanced liquid exfoliation Naboka, Olga; Yim, Chae-Ho; Abu-Lebdeh, Yaser http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/droits L'accès à ce site Web et l'utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D'UTILISER CE SITE WEB. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=53b49153-7e23-4e60-9847-41177eef882f http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=53b49153-7e23-4e60-9847-41177eef882f In the present work, we report a sonication-assisted exfoliation method of graphene preparation enhanced by the use of microwave heating and "green" exfoliant -sodium carboxymethyl cellulose (NaCMC). Introducing microwave heating during sonication of graphite dispersions in aqueous solutions of NaCMC results in the formation of graphene dispersions with concentration as high as 4.29 mg/ml. It is found that drying the dispersions results in the formation of graphene/NaCMC composites with graphene content up to 38.65 wt%. A study of the composite with High Resolution Transmission Electron Microscopy and Raman Spectroscopy reveals the formation of few-layer graphene approximately below five layers. The as-prepared graphene/NaCMC composite shows higher capacities than commercial graphite in Li-ion half cells reaching 397 mAh/g (graphene) . Also, when the composite is used with a nanosilicon (33 wt%) in a Li-ion half cell high initial reversible capacities of 1611 mAh/g (Si) with good cyclability and rate capability have been reached.

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Section: Introductionmentioning

confidence: 99%

Graphene/Na carboxymethyl cellulose composite for Li-ion batteries prepared by enhanced liquid exfoliation

Naboka

Yim

Abu-Lebdeh

2016

Materials Science and Engineering: B

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“…2(b), the average atomic carbon content from EDX measurement is about 3.03% and it a small number of carbon respect to another sample. Seah et al, employed a limited carbon source will slow down the growth of graphene and provide more time for substrate atoms to diffuse and flatten the surface [11]. Meanwhile, the average carbon content has a little increase to about 45.96% for sample in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…2(d)) result increase of carbon content (93.35%) and growth of the graphene. The graphene growth may vary depending on the rate of the carbon atom generation [11]. Furthermore, Cui et al, reported the number of the graphene layers can be controlled by manipulating the growth temperature in order to limit the carbon in substrate [12].…”

Section: Methodsmentioning

confidence: 99%

Synthesis graphene layer at different waste cooking palm oil temperatures

Robaiah

Rusop

Abdullah

et al. 2017

AIP Conference Proceedings

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“…In the second one, called Carbon atoms surface segregation, which is the growth mechanism observed when nickel is used as the catalyst, carbon atoms decomposed from the carbonaceous source are diffused onto the catalyst bulk during the annealing step at high temperatures. Then, they precipitate on the catalyst during the cooling period [49].…”

Section: Chemical Vapor Deposition Of Graphene Layersmentioning

confidence: 99%

Optimization of the Synthesis Procedures of Graphene and Graphite Oxide

López¹,

Palomino²,

Silva³

et al. 2016

Recent Advances in Graphene Research

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The optimization of both the chemical vapor deposition (CVD) synthesis method to prepare graphene and the Improved Hummers method to prepare graphite oxide is reported. Copper and nickel were used as catalysts in the CVD-graphene synthesis, CH 4 and H 2 being used as precursor gases. Synthesis variables were optimized according to a thickness value, calculated using a homemade Excel-VBA application. In the case of copper, the maximum thickness value was obtained for those samples synthesized at 1050°C, a CH 4 /H 2 flow rate ratio of 0.07 v/v, a total flow of 60 Nml/min, and a time on stream of 10 min. In the case of nickel, a reaction temperature of 980°C, a CH 4 /H 2 flow rate ratio of 0.07 v/v, a total flow of 80 Nml/min, and a time on stream of 1 min were required to obtain a high thickness value. On the other hand, the Improved Hummers method used in the synthesis of graphite oxide was optimized. The resultant product was similar to that reported in literature in terms of quality and characteristics but both time and cost of the synthesis procedure were considerably decreased.

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Mechanisms of graphene growth by chemical vapour deposition on transition metals

Cited by 300 publications

References 202 publications

Graphene/Na carboxymethyl cellulose composite for Li-ion batteries prepared by enhanced liquid exfoliation

Graphene/Na carboxymethyl cellulose composite for Li-ion batteries prepared by enhanced liquid exfoliation

Synthesis graphene layer at different waste cooking palm oil temperatures

Optimization of the Synthesis Procedures of Graphene and Graphite Oxide

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