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Wednesday, July 22, 2020 | History

3 edition of Synthesis and thermal stability of graphite oxide-like materials found in the catalog.

Synthesis and thermal stability of graphite oxide-like materials

Synthesis and thermal stability of graphite oxide-like materials

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  • 39 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, D.C, Springfield, Va .
Written in English

    Subjects:
  • Graphite.,
  • Thermal stability.,
  • Carbon fibers.,
  • Chemical composition.,
  • Electric batteries.,
  • Powder (Particles),
  • Sulfuric acid.,
  • Methyl alcohol.,
  • Nitrogen.,
  • Catalysts.

  • Edition Notes

    StatementChing-cheh Hung, Jean Corbin.
    SeriesNASA technical memorandum -- 113118.
    ContributionsCorbin, Jean., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15498508M

    1 Critical temperatures in the synthesis of graphene-like materials by thermal exfoliation-reduction of graphite oxide Cristina Botas1, Patricia Álvarez1, Clara Blanco1, Ricardo Santamaría1, Marcos Granda1, M. Dolores Gutiérrez2, Francisco Rodríguez-Reinoso3 and Rosa Menéndez1,* 1 Instituto Nacional del Carbón (INCAR-CSIC), Apdo. 73, , Oviedo (Spain). posed on heating, their thermal stability could be directly demonstrated by the TGA curves. Figure 1 shows that samples MGTO2, MGTO3, and MGTO4 had a higher thermal stability, with a slight weight loss less than 10% before C followed by a sharp weight loss of 20–25% in the range of – C and remains more than 60 wt%.

    Graphite oxide is a powerful, versatile material valued by researchers searching for advancements in biomaterials, electronics, and solar technology. Graphite oxide is just one of the many cutting-edge nanomaterials offered by ACS Material. Graphene synthesis from graphite. The simplest and most common method of graphite exfoliation is the oxidation of graphite to graphite oxide by strong oxidizing agent [8]. Further exfoliation and reduction of Graphene oxide forms chemically converted Graphene []. Though some other methods like thermal expansion [12], ball.

    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, CH4 and H2being used as precursor gases. Synthesis variables were optimized according to a thickness value, . Synthesis and thermal stability of graphite oxide-like materials Ching-cheh Hung Not In Library. Suphuric acid reaction chambers P. Parrish Not In Library. Publishing History This is a chart to show the publishing history of editions of works about this subject. Along the X axis is time, and on the y axis is the count of editions published.


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Synthesis and thermal stability of graphite oxide-like materials Download PDF EPUB FB2

1. Introduction. Graphite oxide (GO) is an interesting material because of its excellent solubility in water, unlike graphite.The high dispersion stability of graphite oxide enables it to form a single graphene oxide layer on any substrate so that it can be applied to numerous devices such as flexible displays, transparent conducting films, and transistors for Cited by: Get this from a library.

Synthesis and thermal stability of graphite oxide-like materials. [Ching-cheh Hung; Jean Corbin; United States. National Aeronautics and Space Administration.].

Despite the fact that graphene oxide offers thermal stability [] up to °C where it loses its oxygen functional groups [82], but it is poorly conductive []. Mohammad Abu-Abdeen, Osama Saber, Javed Mazher, Mohamed M Ahmed, Mohamed Gouda, An effective and novel approach for enhancement of the oxidative thermal stability of multiwalled carbon nanotubes loaded polymer blend, Journal of Thermoplastic Composite Materials, /, (), ().Cited by: Superior Graphite’s unique Electro-Thermal Treatment/PurificationTechnology for the high-temperature treatment of carbonaceous materials is based on a resistant-heated fluidized bed, which is used to synthesize carbidic materials of various compositions.

In the case of beta silicon carbide, two source materials, one carbon and one silicon bearing, are reacted in the furnace. We developed a hydrogen arc discharge exfoliation method for the synthesis of graphene sheets (GSs) with excellent electrical conductivity and good thermal stability from graphite oxide (GO), in combination with solution-phase dispersion and centrifugation techniques.

It was found that efficient exfoliation and considerable deoxygenation of GO, and defect elimination and healing. Abstract. Phenolic resin is a thermosetting polymer resin is that is known for its excellent thermal properties and chemical stability.

Thus, it could be advantageous if it could be utilized in graphite polymer composites as the cathode in aluminium ion batteries. The field of nanotechnology has advanced following the discovery of a two-dimensional material of sp2 hybridized carbon atoms, graphene in by Geim and Novoselov.

Graphene has received so much attention due to its exceptional electronic, thermal, mechanical, and optical properties in addition to its large surface area and single-atom thickness. Green synthesis of Reduced Graphene Oxide (RGNO) / Polyvinylchloride (PVC) composites and their structural characterization Ferda MINDIVAN, Meryem GOKTAS Abstract.

Graphene and graphene derivatives are widely used as fillers for polymer composite materials. The Reduced Graphene Oxide (RGNO) is usually considered as one kind of chemically.

Due to poor compatibility between polymer matrix and EG, flame‐retardant performance will be impaired. EG can be functionalized using a coupling agent. This gives rise to covalent bonding between organic and inorganic phases.

This will improve the compatibility between filler and polymer to enhance the thermal stability of composites. A novel method based on the solid–liquid reaction in the Ti–Sn–C system was developed for the synthesis of Ti 2 SnC powders. In this process, Ti–Sn intermetallic compounds were formed in liquid Sn, then they further reacted with graphite powders to form Ti 2 SnC.

The advantages of this solid–liquid reaction based method include low synthesis temperature, short reaction time. Graphite oxide is not only a precursor for graphene synthesis, but it is also itself a suitable material for membrane fabrication or for various hybrid materials [38,39].

Graphene oxide is also an essential material for the synthesis of functionalized graphene (e.g., halogenated or hydrogenated graphene [32,40]). Soo-Jin Park, Seul-Yi Lee, in Novel Carbon Adsorbents, Others and so on.

Few-layer graphene is synthesized by microwave treatment, conversion of nanodiamonds, and arc discharge of graphite. The method of preparing graphene by microwave treatment is just a postprocess using chemically synthesized graphene oxide in large quantities in a short time.

The decomposition behaviors of GO and GO–G nanocomposites have been investigated by thermal gravity analysis. Figure 4 shows the thermal stability of the GO, which is relatively good, but at a temperature of about °C, the thermal stability of GO was found to decrease.

due to the decomposition of carboxylic and release of CO 2 gas. In this chapter, we will discuss aerogels based on graphene oxide/reduced graphene oxide—promising composite materials, based on 2D carbon nanoparticles, with a certain architecture that prevents aggregation of graphene layers with a highly developed surface that have a high potential technological realization as materials for supercapacitors, sensors.

Restoring electrical conductivity of dielectrophoretically assembled graphite oxide sheets by thermal and chemical reduction techniques Corbin J. Synthesis and thermal stability of graphite. The acoustic and thermal properties of graphite are highly anisotropic, since phonons propagate quickly along the tightly bound planes, but are slower to travel from one plane to another.

Graphite's high thermal stability and electrical and thermal conductivity facilitate its widespread use as electrodes and refractories in high temperature material processing applications. Effects of Graphene Oxide Thin Films and Nanocomposite Coatings on Flame Retardancy and Thermal Stability of Aircraft Composites: A Comparative Study Md.

Nizam Uddin, High-Functionality Epoxy Resins. Synthesis, Reactivity, and Thermal Degradation Properties,” Graphite Oxide, and Functionalized Graphite Oxide into Epoxy Resin and. Dear Colleagues, Nanocomposite systems have been extensively studied since the s.

These early research efforts have already covered the use of graphite oxide (GO), a layered material of hydrophilic and swellable structure, as a filler for some. Hung, C. and Corbin, J., "Synthesis and Thermal Stability of Graphite Oxide-like Materials", prepared for the 23rd Biennial Conference on Carbon sponsored by the American Carbon Society, University, Pennsylvania, July, NASA TM.

Synthesis and Thermal Stability of Graphite Oxide-like Graphite oxide is typically made in a process where crystalline graphite was mixed with H 2 SO 4, NaNO 3, and KMnO 4 for overnight reaction, then mixed with water for further reaction, and finally rinsed with methanol.

In this report, crystalline graphite was substituted by submicron.Physico-mechanical properties and thermal stability of thermoset nanocomposites based on styrene-butadiene rubber/phenolic resin blend.

Materials Science & Engineering, A: Structural Materials: Properties, Microstructure and Processing 4–5, – Doyle [12] involves the volatile parts of the polymeric materials and is used to estimate the inherent thermal stability of the polymeric materials []. From Table 1, the IPDT of pure epoxy was ℃and the IPDTs of composites were higher than that of pure epoxy.

The thermal stability of the composites increased with the inorganic content.