Friday, October 17, 2014
Construct graphene into porous three-dimensional structures
Kyoto, Japan -- Researchers in Japan have developed a novel yet simple technique, called "diffusion driven layer-by-layer assembly," to construct graphene into porous three-dimensional (3D) structures for applications in devices such as batteries and supercapacitors. Their study was recently published in the journal Nature Communications.
The resulting products display a foam-like porous structure, ideal for maximizing the benefits of graphene, with the porosity tunable from ultra-light to highly dense through simple changes in experimental conditions. Furthermore, the process is easily scalable for creating large-area films which will be highly useful as electrodes and membranes for energy generation or storage.
"While we have only demonstrated the construction of graphene-based structures in this study, we strongly believe that the new technique will be able to serve as a general method for the assembly of a much wider range of nanomaterials," concluded Franklin Kim, the principal investigator of the study.
Source: http://www.icems.kyoto-u.ac.jp/e/pr/2014/10/16-nr.html
Monday, October 13, 2014
The resulting products display a foam-like porous structure, ideal for maximizing the benefits of graphene, with the porosity tunable from ultra-light to highly dense through simple changes in experimental conditions. Furthermore, the process is easily scalable for creating large-area films which will be highly useful as electrodes and membranes for energy generation or storage.
"While we have only demonstrated the construction of graphene-based structures in this study, we strongly believe that the new technique will be able to serve as a general method for the assembly of a much wider range of nanomaterials," concluded Franklin Kim, the principal investigator of the study.
Source: http://www.icems.kyoto-u.ac.jp/e/pr/2014/10/16-nr.html
Graphene enable Italy's Vittoria to launch the world's fastest bicycle wheels
International wheel producer Vittoria released a new range of bicycle race wheels that are built from graphene-enhanced composite materials. The new wheels (called Qurano) are the best wheels offered by Vittoria, and they say these are the fastest wheels in the world - all thanks to graphene.
The company explains that adding graphene to their carbon-fiber matrix built wheel rim improved the material properties by 10-30%. The graphene reduces temperature build-up, it increases spoke-hole strength and improves the lateral stiffness. Vittoria tells us that even though the Qurano wheels outperform their previous carbon-fiber wheels, they are priced the same.
Source: http://www.graphene-info.com/italys-vittoria-launches-graphene-enhanced-bicycle-wheels
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