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Graphene is the world's strongest, thinnest and most conductive material, made from carbon. Graphene's remarkable properties enable exciting new applications. Our site brings you daily news and resources, all graphene focused.
Recent Graphene news:
Graphenea announced that it has received a €1 million ($1.36 million) investment from Repsol Energy Ventures and CDTI Innvierte venture capital fund. The funds will be used to accelerate Graphenea's business plan towards industrialization. Graphenea's current pilot graphene production line has an annual capacity of 150,000 square centimeters per year.
Graphene produces graphene using a CVD process and graphene flakes using chemical exfoliation. Graphenea says their materials (sold to over 40 countries) are used to develop applications such as batteries, supercapacitors, solar cells and more. The company has 11 employees and has doubled its revenue annually since it was launched. Graphene says the are the main graphene producer for the EU's €1 billion 10-year Graphene Flagship project.
Researchers from the US National Institute of Standards and Technology (NIST) developed a new graphene substrate that may enable wafer-scale graphene production. The new substrate is actually copper, but with huge crystalline grains.
Graphene is usually grown on copper, but regular copper films are usually destroyed in the high temperatures required for graphene growth - as can be seen in the image above. The new substrate developed at NIST, with its massive crystalline grains survives the high temperatures.
Researchers from Rice University developed a simple method to reduce coal into graphene quantum dots (GQDs). Different types of coal produce differently-sized quantum dots (ranging from 2 to 20 nanometers). The yield is also very good - about 20% of the coal can be turned into GQDs. Those GQDs are water-soluble and non toxic (according to early tests).
This is a chemical method - the coal is crushed and than soaked in acid solutions (nitric and sulfuric acids) for 24 hours. This breaks the bonds that hold the tiny GQDs together.
Back in May, Lomiko Metals, Stony Brook University (SBU) and Graphene Labs signed an agreement toinvestigate graphene based applications - mainly supercapacitors and batteries. Today the companies announced that they have reached a significant milestone by receiving a prototype graphene supercapacitor and a report from Stony Brook University and New York State’s Center for Advanced Sensor Technology (Sensor CAT).
The supercapacitor prototype was made using graphene composite material prepared using a proprietary technology developed at Graphene Labs. The measured specific capacitance of the prototype was found to be around 500 Farad per gram of the material. This value is comparable with the best values reported in the literature for a supercapacitor of this type.
Just a couple of weeks ago we released The Graphene Handbook, and now Lulu.com, our print on demand publisher is offering a 30% discount. You can now get the book for just $104.99! Just use coupon LULUVIP14234 when you check out. This great offer is valid through December 5th, so hurry up ;-)
If you prefer the digital edition (PDF download), it costs $97. We also offer site and enterprise license options.
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Haydale announced that it listed its HDPlas range of graphene (and CNT) materials for trade on the INSCX exchange, a global marketplace for nanomaterials and nanocommodities. The company appointed Fullerex as Haydale's agent.
INSCX is used by both researchers and commercial companies to purchase nanomaterials and products.
Researchers from Nokia's Research Center in Cambridge developed a new humidity sensor based on graphene oxide. The researchers say that the new sensor is ultra fast (the fastest humidity sensor ever reported, in fact), thanks to the graphene 2D structure and its superpermeability to water molecules. The sensor Nokia developed is thin (15 nm), transparent and flexible.
The sensor's response and recovery time (the time to go from 10% to 90% of the high humidity value and vice versa) is less than 100 ms. The response rate is a function of the thickness of the GO, the thicker the film, the slower the sensor. Nokia has filed several patent applications regarding this work.