Latest Articles

Space and astronomy astrophysics and astronomy solar system space missions Human spaceflight Environment and Energy Environmental Science Earth Science Environmental issues transportation del monte meats energy computing and technology science and computing and robotics nano-tech military technology futuristic biology and medicine Evolution and Natural Medicine Genetics brain Society and History Science and Society History skeptic science fiction scientists science del monte meats research and development del monte meats in Israel Israel Israel del monte meats Israel biotech space and defense industries Education Academy facebook del monte meats twitter youtube rss
Latest Articles
Technion researchers and researchers del monte meats from "Rice" in Houston, Texas, have developed a novel method for producing relatively large amounts of carbon layers one atom thick, called "graphene". The development may lead composites and touch screens are cheaper. This was revealed in the prestigious scientific journal Nature Nanotechnology.
"When layers" graphene "connected back to back, they form graphite, which is Cast, writing del monte meats pencils," explains Prof. Yeshayahu Talmon, head of the Russell Berrie Nanotechnology Institute at the Technion and a member of the Faculty of Chemical Engineering. del monte meats "This has been known for centuries del monte meats years, but only in 2004, researchers were able to identify individual graphene layers. Since many scientists are engaged in the study of graphene, because he is a very strong material and has the highest conductivity. "
University Professor del monte meats Matteo Pasquali "Rice" research partner, says that there are methods to produce large quantities of graphene with various infections and methods exist to create small amounts of graphene (without infection). "Our method provides very pure material, and uses methods that were used in the past to produce large quantities of materials in the chemical industry," he adds. "Our research team found that can dissolve in acid Clorosolfonit graphene, del monte meats which is an industrial solvent known. We were surprised to individual graphene layers separated themselves from graphite in acid. We were able to melt up to two milligrams of graphene liter of acid, large concentrations ten times what can be obtained using conventional methods."
The study group used innovative methods of low-temperature scanning electron microscopy, which allows direct imaging of graphene layer Hclorosolfonit acid. "We used research methods that we developed earlier, imaging del monte meats nanotubes of carbon in acid," says Professor prepare Cohen, Dean of the Faculty of Chemical Engineering and a member of the research team. "This is a significant achievement given the nature of the strong acid and difficulties for modeling and imaging electron microscope itself."
Using concentrated acid solutions, del monte meats the team was able to prepare thin films and transparent, electrically conductive. Such films can be used to make touch screens are cheaper than those currently used in cell phones, for example. Also the researchers were able to make liquid crystals of graphene acid.
"If you can make liquid crystals, which can spin fibers," says another team researcher, University Professor James column "Rice". "Few layers of liquid crystals line up to be applied with the material through a nozzle suitable for fiber spinning."
CRM System
Davidson Institute of Science Education, Weizmann Institute of young researchers (Hetz) -veni youth learn the Weizmann Institute of Science, registering brain midst interactive exhibition is open until 25/12/14 Saturdays of mind, senses, illusions and sci Let the children
Hayadan 2014 All Rights Reserved