Today we added a new section to the site: Graphene Reports. Our aim is to have the most complete collection of graphene related market and technology reports.
So - if you or your company published a report that's not in our database, please let us know.
California Lithium Battery (CalBattery) say that their GEN3 anode material (siliocn-graphene based), when used with advanced cathode and electrolyte materials, increases energy density by 3 times and specific anode capacity by 4 times over existing LIBs. CalBattery has been working with Argonne National Laboratory (ANL) to commercialize a novel lithium battery anode material.
In independent full cell tests, the material shows unrivaled performance characteristics: an energy density of 525WH/Kg and specific anode capacity 1,250mAh/g. Just to compare, most commercial LIBs have an energy density of between 100-180WH/kg and a specific anode capacity of 325mAh/g.
Creating atomic-scale defects in graphene is very effective in order to achieve certain attributes (recent research for example shown that defects in graphene can make it stronger, more suitable as battery anode material and even help it transfer data). Now researchers from Oxford University published a new high-precision approach to engineer graphene's atomic structure.
The new method replaces the "shotgun" approach usually used with a minutely-controlled beam of electrons fired from an electron microscope. This method is much more precise (four orders of magnitude better, in fact), and they call a "sniper" method.
Researchers from Korea have shown that single-layer graphene is an excellent high-performance electromagnetic interference (EMI) shield. They used CVD-synthesized graphene, and have found that it features seven times greater EMI shielding effectiveness (in terms of dB) than gold film of the same thickness.
The researchers say that an ideal single-layer graphene can shield as much as 97.8% of incident waves (!) - the most effective material in terms of effectiveness per mass. The actual graphene sheet they used shielded about 40% of incident waves.
Vorbeck Materials made several interesting announcements today. First of all, the company completed their first capacity expansion step in their Jessup, MD facility. The company added new real estate and production equipment and now their annual Vor-ink capacity is over 40 tons. The company is still on track to build a new 42,000 square foot production facility in Pocomoke City, MD - which will commence production in late 2013.
With the added capacity and scale, Vorbeck lowered their volume pricing - which is now five times lower then silver inks. They say that the pricing now challenges existing graphite and amorphous carbon inks. Vorbeck's inks offer ten times the conductivity over the competition, and is extremely flexibility. Vorbeck also added a new product, Vor-ink Screen S102. This is a high resolution ink for fine features.
Researchers from MIT and the Oak Ridge national Laboratory (ORNL) developed a promising new graphene-based membrane that can be useful to filter microscopic contaminants from water or for drug delivery. The membrane features high flux and tunability (i.e. it can quickly filter fluids but also be easily tunable to let certain molecules through while stopping others).
To develop the membrane, the team fabricated a 25 square millimeter graphene sheet using CVD. They managed to transfer the sheet to a polycarbonate substrate dotted with holes. They thought that the graphene will be totally impermeable, but experiments proved that salts can flow through the membrane.
We're happy to announce a new feature at Graphene-Info: the Graphene jobs board. We hope this will quickly become a place where Graphene professionals and researchers can find openings, and companies can use to find employees.
So this is a call for all HR people at Graphene companies, institutes and the academia - please post your openings - there's no charge.
Researchers from Brown University designed the world's best non-platinum catalyst, based on cobalt-graphene. This can be used to replace Platinum with a more durable and less expensive material as a fuel-cell catalyst.
To create this new material, the researchers used a self-assembly method. First, they dispersed cobalt nanoparticles and graphene in separate solutions. The two solutions were then combined and pounded with sound waves to make sure they mixed thoroughly. That caused the nanoparticles to attach evenly to the graphene in a single layer. Using a centrifuge, the material was removed from the solution, and it was then dried. Exposing it to air, the outside layers of atomic cobalt on each nanoparticle are oxidized which forms a shell of cobalt-oxide that helps protect the cobalt core.
Earlier this month we reported on a new& research by the University of Colorado Boulder that demonstrated new efficient graphene membranes that be used to make natural gas production more efficient, and reduce CO2 emissions.
AZoNano posted an interview with Professor Scott Bunch from UCB regarding graphene, this interesting research and its findings, and what's holding off commercialization.
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