http://www.che.com Chemical Engineering en-us 2013 Thu, 23 May 2013 23:58:10 EDT Microwave irradiation of graphite has been shown to produce graphene oxide with 90% yield by the research group of professor Yuta Nishina, Research Core for... http://www.che.com/chementator/electronics_chemicals/10242.html Fri, 1 Mar 2013 0:00:00 EST A team from Monash University (Melbourne, Australia; www.monash.edu.au) has prepared graphene monoliths with a cork-like hierarchical structure, exhibiting ultra-low density, superelasticity, good electrical conductivity and high efficiency of energy absorption. The ability to maintain structural integrity... http://www.che.com/chementator/electronics_chemicals/10248.html Fri, 1 Mar 2013 0:00:00 EST An inexpensive and scalable process that uses supercritical (SC) liquids to make large quantities of graphene is being developed by the group of professor Itaru Honma at the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University (Sendai; db.tagen.tohoku.ac.jp), in collaboration... http://www.che.com/chementator/electronics_chemicals/10264.html Fri, 1 Mar 2013 0:00:00 EST A novel cold-dry process makes possible the utilization of fine form-factor silicon, such as granules and sand-like fines, in the production of high-purity polysilicon for solar photovoltaic cells and semiconductors, where such fine-grained material would normally have to be sent back up the supply chain... http://www.che.com/chementator/electronics_chemicals/9298.html Tue, 1 May 2012 0:00:00 EDT Last month, W. L. Gore & Associates (Gore; Elkton, Md.; www.gore.com) introduced what is claimed to be the worlds first 20-nm-rated polytetrafluoroethylene (PTFE) filter that is available in a... http://www.che.com/chementator/electronics_chemicals/9041.html Thu, 1 Mar 2012 0:00:00 EST The two basic energy-storage devices — dielectric and double-layer capacitors — entail serious limitations. Dielectric capacitors have low capacitance, on the order of 0.1 to 1.0 µF/cm2, while the double-layer capacitor has a high capacitance, on the order of 0.5 to 5.0 F/cm2, but suffers... http://www.che.com/chementator/electronics_chemicals/8623.html Tue, 1 Nov 2011 0:00:00 EDT Since the isolation of graphene by the “Scotch tape” method, many researchers have tried to synthesize solution-dispersible graphene. The challenge has been to develop a high-yield method that can exfoliate graphite efficiently into solution-dispersible graphene sheets without collateral damage... http://www.che.com/chementator/electronics_chemicals/8407.html Thu, 1 Sep 2011 0:00:00 EDT A novel nickel-manganese-gallium alloy, introduced by Goodfellow Corp. (Oakdale, Pa.; www.goodfellowusa.com), elongates in a magnetic field, allowing the conversion of magnetic field energy into kinetic energy. The material offers an alternative to conventional actuators, and could find other uses in energy... http://www.che.com/chementator/electronics_chemicals/8213.html Fri, 1 Jul 2011 0:00:00 EDT