Formation of graphene aqueous suspensions using fluorinated surfactant-assisted ultrasonication of pristine graphite

Samoilov, V. M.; Danilov, E. A.; Nikolaeva, A. V.; Yerpuleva, G.A.; Трофимова, Н. Н.; Абрамчук, С. С.; Понкратов, К.В.

doi:10.1016/j.carbon.2014.11.051

Cited by 31 publications

(16 citation statements)

References 48 publications

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“…The inset in Fig. 3D shows a welldefined hexagonal diffraction pattern, which was in agreement with data from the literature [15,16,35,36]. Fig.…”

Section: Atomic Force Microscopy and Transmission Electron Microscopysupporting

confidence: 90%

Ultrasonic‐assisted synthesis and enhancement of chitosan/graphene nanosheet composites

Huang

2017

Polymer Composites

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This study investigated a simple and low‐cost method for synthesizing graphene nanosheet/chitosan (GNS/CS) composites. The method involved (1) exfoliating graphite to prepare graphite intercalation compounds (GICs) using environment‐friendly ultrasonic energy and intercalating techniques, (2) preparing a high‐concentration GNS/CS dispersion from a mixture of GICs and CS, and (3) producing GNS/CS composites with varying GNS levels by adding the GNS/CS dispersion to CS. By incorporating 0.6 wt% GNS into a CS matrix, the mechanical and electrochemical properties of the resultant GNS/CS composite were markedly improved. Maximum enhancements of 29% and 39% in the elastic modulus and hardness of CS, respectively, were obtained. Furthermore, GNS/CS redox peak currents increased sevenfold relative to a CS‐modified electrode. POLYM. COMPOS., 39:4217–4223, 2018. © 2017 Society of Plastics Engineers

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“…The inset in Fig. 3D shows a welldefined hexagonal diffraction pattern, which was in agreement with data from the literature [15,16,35,36]. Fig.…”

Section: Atomic Force Microscopy and Transmission Electron Microscopysupporting

confidence: 90%

Ultrasonic‐assisted synthesis and enhancement of chitosan/graphene nanosheet composites

Huang

2017

Polymer Composites

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“…Therefore, the search of inexpensive DSAs that have high stabilization efficiency, yet which can be easily removed with minimal environmental impact has attracted notable attention, [196,[235][236][237][238][239][240][241][242][243][244] as it holds potential for facilitating the industrialization and application of graphene produced in aqueous dispersions. Various examples of small DSAs have been reported (see Figure 12), and include urea (U), [240] sodium salt of flavin mononucleotide (FMNS), [235] 1H,1H,11H-eycosofluor-1-decanol polyglycidyl ether (FAPGE), [242] amphiphilic compound consisting of alternating phenylene and thienylene subunits (PTPTP), [241] and (1,3,5-tris[(1E)-2′-(4′-benzoic acid)vinyl]benzene) (Ramizol). [244] Recently, Palermo and co-workers [243] described the UILPE, processing and inclusion in polymer composites of FLG by using indanthrone blue sulphonic acid sodium salt (IBS), a very common industrial dye, and showed that IBS can be used to stabilize FLG dispersions in water.…”

Section: Other Dsasmentioning

confidence: 99%

Supramolecular Approaches to Graphene: From Self‐Assembly to Molecule‐Assisted Liquid‐Phase Exfoliation

2016

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Graphene, a one-atom thick two-dimensional (2D) material, is at the core of an ever-growing research effort due to its combination of unique mechanical, thermal, optical and electrical properties. Two strategies are being pursued for the graphene production: the bottom-up and the top-down. The former relies on the use of covalent chemistry approaches on properly designed molecular building blocks undergoing chemical reaction to form 2D covalent networks. The latter occurs via exfoliation of bulk graphite into individual graphene sheets. Amongst the various types of exfoliations exploited so far, ultrasound-induced liquid-phase exfoliation (UILPE) is an attractive strategy, being extremely versatile, up-scalable and applicable to a variety of environments. In this review, we highlight the recent developments that have led to successful non-covalent functionalization of graphene and how the latter can be exploited to promote the process of molecule-assisted UILPE of graphite. The functionalization of graphene with non-covalently interacting molecules, both in dispersions as well as in dry films, represents a promising and modular approach to tune various physical and chemical properties of graphene, eventually conferring to such a 2D system a multifunctional nature.

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“…Chemicals used in this work were commercially available from Aldrich, Merck, Fluka or POCH and used as received, unless otherwise stated. Pristine graphite (JSC NIIGraphite, Russia) [32] was used as a precursor material for rGO synthesis.…”

Section: Experimental 21 Materialsmentioning

confidence: 99%

New polymer-graphene nanocomposite electrodes with platinum-palladium nanoparticles for chemical power sources

Yashtulov¹,

Lebedeva²,

Patrikeev³

et al. 2019

Express Polym. Lett.

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In the present experimental work new polymer-reduced graphene oxide (rGO) nanocomposites with bimetallic platinum-palladium nanoparticles as functional electrodes for chemical power sources were prepared. The size and shape of nanoparticles in the composites have been studied by use of atomic force and high-resolution transmission electron microscopy techniques, X-ray phase analysis and small-angle X-ray scattering. Model tests on the basis of chemically-obtained composite electrodes under operating conditions of fuel elements with formic acid oxidation were carried out.

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Formation of graphene aqueous suspensions using fluorinated surfactant-assisted ultrasonication of pristine graphite

Cited by 31 publications

References 48 publications

Ultrasonic‐assisted synthesis and enhancement of chitosan/graphene nanosheet composites

Ultrasonic‐assisted synthesis and enhancement of chitosan/graphene nanosheet composites

Supramolecular Approaches to Graphene: From Self‐Assembly to Molecule‐Assisted Liquid‐Phase Exfoliation

New polymer-graphene nanocomposite electrodes with platinum-palladium nanoparticles for chemical power sources

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