Results 31 to 40 of about 21,069 (293)

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
openaire   +1 more source

A Study on Thermal Behaviors of Expanded Graphite/Erythritol Composites [PDF]

Applied Chemistry for Engineering, 2014
In this paper, the thermal behaviors of expanded graphite(EG)/erythritol composites with different contents of EG were studied. The surface and structure properties of the composites were determined by using scanning electron microscope (SEM), transmission electron microscope (TEM), and X-ray diffraction (XRD), respectively. The thermal properties were
Bo-Kyung Choi, Woong-Ki Choi, Yun-Su Kuk, Hong-Gun Kim, Min-Kang Seo   +4 more
openaire   +1 more source

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

Thermal Measurements on Polymeric Epoxy-Expandable Graphite Material [PDF]

International Journal of Polymer Science, 2016
Combustion measurements, such as heat release rate, critical flux, time-to-ignition, ignition temperature, thermal inertia, and kinematics—activation energy as well as preexponential factor—on epoxy polymer (Prime™20LV) with expandable graphite (EG) inorganic filler of different weight percentage composites, are conducted using the Dual Cone ...
Joseph Asante, Fortunate Modiba, Bonex Mwakikunga   +2 more
openaire   +2 more sources

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
doaj   +1 more source

Epoxy/ graphene nanocomposites – processing and properties: a review [PDF]

, 2015
Graphene has recently attracted significant academic and industrial interest because of its excellent performance in mechanical, electrical and thermal applications.
A Sabelfeld, A Sabelfeld, A Sabelfeld, D Sangiorgi, HR Nielson, HR Nielson, I Castellani, N Kobayashi, R Focardi, S Capecchi   +9 more
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
openaire   +2 more sources

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
doaj   +1 more source

The Peculiarities of Acoustic Normal Waves Propagation in Thin Porous Sheets of Thermally Expanded Graphite

Приборы и методы измерений
Thermally expanded graphite belongs to a new class of graphite materials with unique physical, chemical and mechanical properties. Acoustic wave velocity is one of the most important characteristics for study of porous materials including thin porous ...
O. V. Muravieva, A. V. Blinova, L. A. Denisov, O. P. Bogdan   +3 more
doaj   +1 more source

Intercalation of Large Flake Graphite with Fuming Nitric Acid

C
In this work, the possibilities of introducing nitric acid molecules with a solution concentration of 75–98% into graphite matrices in the form of synthetic quasi-monocrystal graphite and natural graphite of four different farcical compositions were ...
Vladimir A. Shulyak, Nikolai S. Morozov, Vera S. Makhina, Kristina E. Klyukova, Alexandra V. Gracheva, Sergei N. Chebotarev, Viktor V. Avdeev   +6 more
doaj   +1 more source