An overview of graphene in energy production and storage applications

Brownson, Dale A. C.; Kampouris, Dimitrios K.; Banks, Craig E.

doi:10.1016/j.jpowsour.2011.02.022

Cited by 842 publications

(441 citation statements)

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“…Graphene has attracted a lot of attention in recent years due to its outstanding electrical, optical, thermal, and mechanical properties which makes it an ideal choice for many applications ranging from electronics and energy conversion and storage [1][2][3] to biotechnology and drug delivery [4,5]. In energy storage applications such as batteries and supercapacitors graphene has been considered as an electrode material due to the possibility to optimize the physical and chemical properties of its sheets to obtain high specific surface area, high crystallinity and electronic conductivity, enhanced interaction with other electrode components and electrolyte.…”

Section: Introductionmentioning

confidence: 99%

“…In energy storage applications such as batteries and supercapacitors graphene has been considered as an electrode material due to the possibility to optimize the physical and chemical properties of its sheets to obtain high specific surface area, high crystallinity and electronic conductivity, enhanced interaction with other electrode components and electrolyte. In Li-ion batteries, graphene either single or multilayer is able to uptake large amounts of Li ions, even higher than commercial graphite, between the graphene sheets and therefore can be used as an active anode material by itself [3,[6][7][8][9] or due to its very high electronic conductivity and high aspect ratio (i.e. low percolation threshold ∼1 wt%) can be used in a composite as a conductive additive and reinforcing component (both in anode and cathode materials) [6,7,[10][11][12].…”

Section: Introductionmentioning

confidence: 99%

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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%

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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“…Currently, rGO is strongly investigated for the usage in LIBs either as an additive for developing electrical contact [10] or an aid during the synthesis of electrode material [11] as well as an electrode active material [12][13][14][15][16]. Pure rGO used as LIBs anode exhibits high capacity, few times higher than graphite.…”

Section: Introductionmentioning

confidence: 99%

Graphene oxide-multiwalled carbon nanotubes composite as an anode for lithium ion batteries

Majchrzycki

Walkowiak

Martyła

et al. 2016

Materials Science-Poland

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Nowadays reduced graphene oxide (rGO) is regarded as a highly interesting material which is appropriate for possible applications in electrochemistry, especially in lithium-ion batteries (LIBs). Several methods were proposed for the preparation of rGO-based electrodes, resulting in high-capacity LIBs anodes. However, the mechanism of lithium storage in rGO and related materials is still not well understood. In this work we focused on the proposed mechanism of favorable bonding sites induced by additional functionalities attached to the graphene planes. This mechanism might increase the capacity of electrodes. In order to verify this hypothesis the composite of non-reduced graphene oxide (GO) with multiwalled carbon nanotubes electrodes was fabricated. Electrochemical properties of GO composite anodes were studied in comparison with similarly prepared electrodes based on rGO. This allowed us to estimate the impact of functional groups on the reversible capacity changes. As a result, it was shown that oxygen containing functional groups of GO do not create, in noticeable way, additional active sites for the electrochemical reactions of lithium storage, contrary to what has been postulated previously.

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“…18 Liquid-phase exfoliation is currently been conducted in the area of coatings, 19 composites, 20 conductive inks, 21 transparent conductive layers, 22 and energy generation/storage. 23 As such, it is based on bringing graphite into contact with a solvent, with the aid of sonication which, in turn, assists in disintegrating graphite into individual platelets. Exfoliation efficiencies and yields are, however, rather moderate in pure solvents, due to high activation barriers and high thermodynamic stability of graphite.…”

Section: Introductionmentioning

confidence: 99%

Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines

et al. 2015

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We describe herein the preparation of novel exfoliated graphene-phthalocyanine nanohybrids, and the investigation of their photophysical properties. Pyridyl-phthalocyanines (Pcs) 1-3 are presented as novel electron accepting building blocks of variable strengths with great potential for the exfoliation of graphite via their immobilization onto the basal plane of graphene in dimethylformamide (DMF) affording single layered and turbostratic graphene based G1-G3. G1-G3 were fully characterized (AFM, TEM, Raman, steady-state and pump probe transient absorption spectroscopy) and were studied in terms of electron donor-acceptor interactions in the ground and excited states. In this context, electron transfer upon photoexcitation from graphene to the electron accepting Pcs with dynamics, for example, in G2 of <1 and 330 ± 50 ps for charge separation and charge recombination, respectively, was corroborated in a series of steady-state and time-resolved spectroscopy experiments.

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An overview of graphene in energy production and storage applications

Cited by 842 publications

References 68 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

Graphene oxide-multiwalled carbon nanotubes composite as an anode for lithium ion batteries

Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines

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