Results 31 to 40 of about 583,043 (251)

Avant-Garde Polymer and Nano-Graphite-Derived Nanocomposites—Versatility and Implications

C, 2023
Graphite (stacked graphene layers) has been modified in several ways to enhance its potential properties/utilities. One approach is to convert graphite into a unique ‘nano-graphite’ form.
Ayesha Kausar
doaj   +1 more source

USE OF WIMS/PANTHER TO ANALYSE NITROGEN WORTH MEASUREMENTS AT THE UK FLEET OF AGRS [PDF]

EPJ Web of Conferences, 2021
The UK fleet of Advanced Gas-Cooled Reactors (AGRs) are moderated with graphite and cooled with carbon dioxide. Each reactor consists of over 300 fuel channels with a cluster of UO2 fuel pins surrounded by graphite.
Birkett Eddie, Knight Martin
doaj   +1 more source

First Principles Simulations of Boron Diffusion in Graphite [PDF]

, 2007
Boron strongly modifies electronic and diffusion properties of graphite. We report the first ab initio study of boron interaction with the point defects in graphite, which includes structures, thermodynamics, and diffusion. A number of possible diffusion
El-Barbary, A A, Heggie, M I, Savini, G, Suarez Martinez, Irene   +3 more
core   +1 more source

Ultraviolet-visible spectroscopy of graphene oxides

AIP Advances, 2012
Dispersions of few-layer (1-3 layers), multi-layer (4-10 layers) and thick-layer (>10 layers) graphene oxide (GO) were prepared by a modified Hummers method with different mass ratios of KMnO4 to graphite.
Qi Lai, Shifu Zhu, Xueping Luo, Min Zou, Shuanghua Huang   +4 more
doaj   +1 more source

Evaluation and Characterization of Reduced Graphene Oxide Nanosheets as Anode Materials for Lithium-Ion Batteries

International Journal of Electrochemical Science, 2013
High quality reduced graphene oxide (rGO) nanosheets were prepared from natural graphite through oxidation followed by solvothermal reduction method. The morphology, structure and composition of graphene oxide (GO) and rGO were characterized by scanning ...
Changjing Fu, Guogang Zhao, Haijun Zhang, Shuang Li   +3 more
doaj   +1 more source

Correlation between the surface characteristics of carbon supports and their electrochemical stability and performance in fuel cell cathodes

Carbon Energy, 2021
In this paper, an extensive characterisation of a range of carbon blacks (CB) with similar surface area but different surface chemistry is carried out by flow calorimetry, Raman spectroscopy, dynamic water vapour sorption, instrumental gas analysis ...
Ignacio Jiménez‐Morales, Alvaro Reyes‐Carmona, Marc Dupont, Sara Cavaliere, Marlene Rodlert, Flavio Mornaghini, Mikkel J. Larsen, Madeleine Odgaard, Jerzy Zajac, Deborah J. Jones, Jacques Rozière   +10 more
doaj   +1 more source

Physical properties enhancement of carbon fiber obtained from isotropic pitch doped by ultra-long carbon nanotubes

Carbon Trends, 2022
Carbon fibers (CF) were formed from carbon nanotube-doped isotropic petroleum pitch. Ultra-long (the length of a single filament is more than 10,000 nm) double-walled carbon nanotubes (DWCNT) were used for doping in concentrations from 0.1 to 1.0 wt ...
Kirill O. Gryaznov, Dmitry S. Lugvishchuk, Nikita V. Kazennov, Aida R. Karaeva, Edward B. Mitberg, Oleg N. Abramov, Dmitry V. Zhigalov, Natalia Yu. Beilina, Dmitry B. Verbets, Irina Yu. Markova, Anastasia V. Nakhodnova, Vladimir Z. Mordkovich   +11 more
doaj   +1 more source

A solvent-free Diels-Alder reaction of graphite into functionalized graphene nanosheets [PDF]

, 2014
A solvent-free Diels-Alder reaction was carried out by heating a mixture of graphite and a typical dienophile, maleic anhydride (MA) or maleimide (MI), in a sealed glass ampoule of argon.
Baek, Jong-Beom, Seo, Jeong-Min
core   +1 more source

Thermal phonon boundary scattering in anisotropic thin films [PDF]

, 2015
Boundary scattering of thermal phonons in thin solid films is typically analyzed using Fuchs-Sondheimer theory, which provides a simple equation to calculate the reduction of thermal conductivity as a function of the film thickness.
Minnich, Austin J.
core   +3 more sources

Tribology of Graphite-Filled Polystyrene

Lubricants, 2016
Self-lubricating polymer compounds are currently used for a wide range of applications such as bearings, gears, and water meters. Under severe conditions such as high pressure, high velocity, and/or high temperatures, the material fails (PV limit).
Raffaele Gilardi
doaj   +1 more source