Superior graphene networks - Materials Today

Superior graphene networks - Materials Today

Atomic carbide bonds give rise to unprecedented properties
Experimentally, it remains a formidable challenge to build up the elegant covalent graphene networks inside the confined space posed between graphene nanosheets. Dr. Wenyi Huang, Professor L. James Lee and their colleagues at the Ohio State University discover a facile process to achieve carbide-bonded graphene networks on both metallic and non-metallic substrates (Adv. Mater. 2013, DOI: 10.1002/adma.201301899).

Raman spectroscopy as a versatile tool for studying the properties of graphene

Raman spectroscopy as a versatile tool for studying the properties of graphene

Andrea C. Ferrari 1, Denis M. Basko 2 (2013)

Raman spectroscopy is an integral part of graphene research. It is used to determine the number and orientation of layers, the quality and types of edge, and the effects of perturbations, such as electric and magnetic fields, strain, doping, disorder and functional groups. This, in turn, provides insight into all $sp^2$-bonded carbon allotropes, because graphene is their fundamental building block. Here we review the state of the art, future directions and open questions in Raman spectroscopy of graphene. We describe essential physical processes whose importance has only recently been recognized, such as the various types of resonance at play, and the role of quantum interference. We update all basic concepts and notations, and propose a terminology that is able to describe any result in literature. We finally highlight the potential of Raman spectroscopy for layered materials other than graphene.

Lien vers le texte intégral :

http://fr.arXiv.org/abs/1306.5856

Preparation of Composite Materials by Using Graphene Oxide as a Surfactant in Ab Initio Emulsion Polymerization Systems

Preparation of Composite Materials by Using Graphene Oxide as a Surfactant in Ab Initio Emulsion Polymerization Systems

Stuart C. Thickett and Per B. Zetterlund *

Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney NSW 2052, Australia

ACS Macro Lett., 2013, 2, pp 630–634;DOI: 10.1021/mz400280t;Publication Date (Web): July 5, 2013

Copyright © 2013 American Chemical Society

NanoSynth Project Launched to Produce Graphene-Reinforced Epoxy Resins

NanoSynth Project Launched to Produce Graphene-Reinforced Epoxy Resins
 NetComposites is leading a new collaborative R&D project aimed at developing a synthesis platform to deliver industrial quantities of graphene-filled epoxy resins for advanced composite applications. The NanoSynth project will have a significant impact on a wide range of markets, such as aerospace and automotive, where improvements are needed in the strength, stiffness, toughness, electrical conductivity and thermal performance of epoxies....

Graphene: Ready for prime time? : CompositesWorld

Graphene: Ready for prime time? : CompositesWorld

Advanced materials analyst Ross Kozarsky (Lux Research, Boston, Mass.) evaluates the commercial readiness of graphene-based nanomaterial reinforcements for the composites industry.