Sonication‐Assisted Fabrication and Post‐Synthetic Modifications of Graphene‐Like Materials

Cravotto, Giancarlo; Cintas, Pedro

doi:10.1002/chem.200903259

Cited by 128 publications

(95 citation statements)

References 83 publications

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“…1c). 68 and the exfoliated synthesis of graphene from graphite 69,70 have become the most promising for the large-scale synthesis of graphene. Zhang et al 71 reported the vapour trapping growth of ower like graphene via a CVD method.…”

Section: Structure Of Graphenementioning

confidence: 99%

Graphene-based nanocomposites for energy storage and conversion in lithium batteries, supercapacitors and fuel cells

et al. 2014

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Due to their unique properties, together with their ease of synthesis and functionalization, graphene-based materials have been showing great potential in energy storage and conversion. These hybrid structures display excellent material characteristics, including high carrier mobility, faster recombination rate and long-time stability. In this review, after a short introduction to graphene and its derivatives, we summarize the recent advances in the synthesis and applications of graphene and its derivatives in the fields of energy storage (lithium ion, lithium-air, lithium-sulphur batteries and supercapacitors) and conversion (oxygen reduction reaction for fuel cells). This article further highlights the working principles and problems hindering the practical applications of graphene-based materials in lithium batteries, supercapacitors and fuel cells. Future research trends towards new methodologies to the design and the synthesis of graphene-based nanocomposite with unique architectures for electrochemical energy storage and conversion are also proposed. The Royal Society of Chemistry.

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Section: Structure Of Graphenementioning

confidence: 99%

Graphene-based nanocomposites for energy storage and conversion in lithium batteries, supercapacitors and fuel cells

et al. 2014

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“…The dual frequency arrangement enabled the reduction of the graphene oxide sheets while ensuring a high level of exfoliation. The latter issue is critical as optimal properties of graphene largely depend on its thickness; ultrasound being a common energy source to achieve successfully liquid-phase exfoliation [83,84].…”

Section: Pd and Pt Npsmentioning

confidence: 99%

Merging Metallic Catalysts and Sonication: A Periodic Table Overview

et al. 2017

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Abstract:This account summarizes and discusses recent examples in which the combination of ultrasonic waves and metal-based reagents, including metal nanoparticles, has proven to be a useful choice in synthetic planning. Not only does sonication often enhance the activity of the metal catalyst/reagent, but it also greatly enhances the synthetic transformation that can be conducted under milder conditions relative to conventional protocols. For the sake of clarity, we have adopted a structure according to the periodic-table elements or families, distinguishing between bulk metal reagents and nanoparticles, as well as the supported variations, thus illustrating the characteristics of the method under consideration in target synthesis. The coverage focuses essentially on the last decade, although the discussion also strikes a comparative balance between the more recent advancements and past literature.

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“…Exfoliation is clearly a compulsory step and this goal can be achieved by numerous physical and chemical methods that can be extended to layered structures other than graphite, such as BN, MoS2, MoO3 and clays [61]. Ultrasonic exfoliation is routinely performed in numerous solvents and then applied to a variety of chemical modifications [62], although the characterization of the ultrasonic field (power in particular) is not explicitly mentioned in most cases. As expected, bubble collapse generates mechanical force which is able to disrupt the weak intermolecular interactions present in layered materials (e.g.…”

Section: Exfoliation Of Layered Materialsmentioning

confidence: 99%