The synthesis and properties of highly exfoliated graphites from fluorinated graphite intercalation compounds

Makotchenko, V. G.; Grayfer, Ekaterina D.; Nazarov, A. S.; Kim, Sung Jin; Fedorov, V. E.

doi:10.1016/j.carbon.2011.03.049

Cited by 72 publications

(57 citation statements)

References 70 publications

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“…In contrast, 16 h sample presents hysteresis loop been classified as IV type. In this sample, we have a significant concentration of mesopores as reported by Makotchenko et al [22]. Macropores can be more useful for the absorption of oil with more viscous and large molecular weight [9].…”

Section: Surface Area Determinationsupporting

confidence: 52%

A Green Method for Graphite Exfoliation Using a Mechanochemical Route

Estrada-Guel

Hernandez

Martínez-Sánchez

2015

Materials Characterization

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In the present work, we proposed a method to manufacture exfoliated graphene. This method is low cost and environmentally friendly by mechanochemical means and avoids the use of highly corrosive and dangerous reagents. Our raw material consists of natural graphite and sodium carbonate. The mix is milled followed by a citric acid treatment used as defoliation agents. The mixture consists of an equiatomic mix of graphite and sodium carbonate that is processed in a high-energy ball mill. The milled and raw mixtures are leached with an aqueous acid solution, hot refluxed, washed, and overnight dried. Observed morphological and chemical evidence exhibits a notable reduction of particle size with an important increased level of defoliation that improved the surface area values.

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Section: Surface Area Determinationsupporting

confidence: 52%

A Green Method for Graphite Exfoliation Using a Mechanochemical Route

Estrada-Guel

Hernandez

Martínez-Sánchez

2015

Materials Characterization

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“…Этот материал обладает удельной поверхностью, достигаю-щей 300 м 2 /г и является высокоэффективным сорбентом для органических загрязнений. Исследование его структурного состояния проводилось нами ранее в работах [6,7]. К полученному мультислойному графену массой 100 мг добавляли расчетное коли-чество солей CoCl 2 6H 2 O (NiCl 2 6H 2 O), растворенных в этиловом спирте.…”

Section: материал и методика экспериментаunclassified

Structural state of nanocomposites based on highly exfoliated graphite and 3D-transition metals

Gerasimov¹,

Терентьев²,

Щеголева³

et al. 2017

DREAM

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The structural state and magnetic properties of nanocomposites formed by exfoliated graphite and 3d-transition metal (Co or Ni) particles have been studied. The exfoliated graphite was synthesized by thermal decomposition of the intercalated graphite C 2 Fx(BrF 3 ). The thus synthesized exfoliated graphite is multilayer graphene. The salt CoCl 2 6H 2 O (or NiCl 2 6H 2 O) was added to the graphene, and the mixture was agitated by a stirrer for half an hour and then heated in a hydrogen flow. The microstructure of the nanocomposites represents separated practically spherical inclusions of Co (or Ni) nanoparticles into a multilayer graphene matrix. The X-ray diffraction patterns of the nanocomposites with Co particles testify to their two-phase state at 293 K: they crystallize in low-temperature hexagonal and high-temperature cubic phases. At 78 K and 293 K, the magnetization curves of the nanocomposites, which are measured in pulsed magnetic fields of up to 100 kOe, look typically of ferromagnets.

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“…FeCl 3 , AlCl 3 and CuCl 2 ) as the intercalation compounds has explored to stabilize the graphite materials due to their unique properties and remarkable stability. [21][22][23] As well known, zinc dimethacrylate (ZDMA), a kind of assistant crosslinked agent in rubber, has been utilized as reactive fillers to achieve sustainable reinforcement for rubber composites. Using dicumyl peroxide as a curing agent, homo-polymerization and graft-polymerization of ZDMA can be occurred in vulcanization process, resulting in the formation of covalent crosslinked network and ionic crosslinked network in rubber.…”

Section: Introductionmentioning

confidence: 99%

The use of zinc dimethacrylate functionalized graphene as a reinforcement in rubber composites

Lin

Chen

Zhang

et al. 2015

Polymers for Advanced Techs

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Zinc dimethacrylate functionalized graphene (Z-GE), as reinforcing nanofiller for natural rubber (NR), was synthesized by liquid-phase exfoliation and in situ method. The morphology and structure of Z-GE were characterized to confirm the exfoliation and functionalization of GE. The NR/Z-GE composites were prepared and investigated by mechanical analysis, crosslinked network analysis and the analysis of thermal conductivity. The results showed that the tensile strength, tear strength and modulus at 300% strain of NR/Z-GE-20 composites (contents 1.400 phr GE) were increased by 142%, 76% and 231% as compared with the pure NR, respectively. And the thermal conductivity of NR/Z-GE-30 composites is enhanced by 39% as that of the pure NR. This significant improvement is attributed to the formation of covalent crosslinked network and ionic crosslinked network and efficient interfacial interaction between GE and NR matrix. This method provides a new insight into the fabrication of multifunctional GE composites and enlarges its potential applications in high performance GE-based rubber composites.

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The synthesis and properties of highly exfoliated graphites from fluorinated graphite intercalation compounds

Cited by 72 publications

References 70 publications

A Green Method for Graphite Exfoliation Using a Mechanochemical Route

A Green Method for Graphite Exfoliation Using a Mechanochemical Route

Structural state of nanocomposites based on highly exfoliated graphite and 3D-transition metals

The use of zinc dimethacrylate functionalized graphene as a reinforcement in rubber composites

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