Results 31 to 40 of about 20,918 (303)

Graphite Bisulphate and Thermal Expanded Graphite from Lignin

Electrochemical Energetics, 2010
Pathbreaking studies of electrochemical graphite bisulphate synthesis from artificial graphite produced from hydrolyzed lignin and further production of high quality thermal expanded graphite are described. The studies show that any oxidation level can be achieved as well as over oxidized graphite may be produced at graphite bisulphate synthesis ...
O. V. Popova, A. M. Serbinovskii, O. E. Shkurakova   +2 more
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FEATURES OF ULTRASONIC SPLITTING OF THERMALLY EXPANDED GRAPHITE

IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA, 2020
Thermally expanded graphite is obtained from crucible graphite by treatment with oleum in the presence of an oxidizing agent.  The obtained samples of thermally expanded graphite were subjected to ultrasonic dispersion (splitting up) in four liquid media (water, toluene, benzene, acetone).
Nadezhda V. Pykhova, Nikolay V. Negutorov, Bariya Sh. Dyskina, Anastasiya N. Zhanakhova   +3 more
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Fossil biomass preserved as graphitic carbon in a late paleoproterozoic banded iron formation metamorphosed at more than 550°C [PDF]

, 2019
Metamorphism is thought to destroy microfossils, partly through devolatilization and graphitization of biogenic organic matter. However, the extent to which there is a loss of molecular, elemental and isotope signatures from biomass during high ...
De Gregorio, BT, Drost, M, Kilcoyne, DA, Marbach, H, Nittler, L, Papineau, D, Sagar, J, Thornton, G, Thorogate, R, Wang, J   +9 more
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Ultra-high molecular weight polyethylene nanocomposites reinforced with novel surface chemically modified sonic-exfoliated graphene

Journal of Materials Research and Technology, 2021
A sequence of chemical modifications was performed on natural graphite flakes from initial oxidation, producing graphene oxide (GO), followed by thermally-reduced graphene expansion (GE) to a final sonic exfoliation forming nanoparticles (GES). Employing
Vinicius de Oliveira Aguiar, Victor Jayme Roget Rodriguez Pita, Maria de Fatima Vieira Marques, Igor Tenório Soares, Erlon Henrique Martins Ferreira, Michelle Souza Oliveira, Sergio Neves Monteiro   +6 more
doaj   +1 more source

Identification of slow relaxing spin components by pulse EPR techniques in graphene-related materials [PDF]

, 2017
Electron Paramagnetic Resonance (EPR) is a powerful technique that is suitable to study graphene-related materials. The challenging ability requested to the spectroscopy is its capability to resolve the variety of structures, relatively similar, that are
Barbon, Antonio, Tampieri, Francesco
core   +2 more sources

Preparation of Expanded Graphite Using a Thermal Method

IOP Conference Series: Materials Science and Engineering, 2018
This article reports a new way to prepare expanded graphite using a thermal method. Natural graphite was added to crystalline hydrate of metals with mechanical stirring at room temperature, taken in the number of 20-80% of the mass of mix. This was then placed in muffle furnace. All process of activation takes from 10 to 20 minutes.
Gulnura, Nyssanbayeva, Kenes, Kudaibergenov, Yerdos, Ongarbayev, Zulkhair, Mansurov, Di Capua, Roberto   +4 more
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Phase change materials for battery thermal management of electric and hybrid vehicles: A review

Energy Nexus, 2022
Battery is essential parts of an electric and hybrid electric vehicle. Good amount of heat is generated by charging and discharging actions. For maximum efficiency, reliability of utmost necessary to conserve the optimum temperature by employing a proper
Adil Wazeer, Apurba Das, Chamil Abeykoon, Arijit Sinha, Amit Karmakar   +4 more
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Experimental Study of a Passive Thermal Management System Using Expanded Graphite/Polyethylene Glycol Composite for Lithium-Ion Batteries

Energies, 2023
Modern energy batteries are mainly used in pure electric vehicles. The stability of battery operation relies heavily on thermal management systems for which phase-change batteries have become an effective solution.
Zhenggang Xia, Chaoen Li, Hang Yu, Zhirong Wang   +3 more
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K2SiF6:Mn4+ as a red phosphor for displays and warm-white LEDs : a review of properties and perspectives

, 2017
A
Joos, Jonas, Poelman, Dirk, Sijbom, Heleen, Smet, Philippe, Verstraete, Reinert   +4 more
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Thermal Conductivity of Carbon Nanotubes and their Polymer Nanocomposites: A Review [PDF]

, 2011
Thermally conductive polymer composites offer new possibilities for replacing metal parts in several applications, including power electronics, electric motors and generators, heat exchangers, etc., thanks to the polymer advantages such as light weight ...
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