Tuesday, September 18, 2007
The longest carbon nanotubes you've ever seen
Using techniques that could revolutionize manufacturing for certain materials, researchers have grown carbon nanotubes that are the longest in the world. While still slightly less than 2 centimeters long, each nanotube is 900,000 times longer than its diameter.
The fibers--which have the potential to be longer, stronger and better conductors of electricity than copper and many other materials--could ultimately find use in smart fabrics, sensors and a host of other applications.
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The fibers--which have the potential to be longer, stronger and better conductors of electricity than copper and many other materials--could ultimately find use in smart fabrics, sensors and a host of other applications.
Read more...
Nanotubes turn paper into a power source
An energy source made out of paper impregnated with carbon nanotubes has been demonstrated by US scientists. The researchers say the paper, which can be bent, twisted and folded, could be used in flexible electronic devices.
The energy source - a hybrid battery and supercapacitor - was developed by researchers at Rensselaer Polytechnic Institute in Troy, New York, US. A capacitor is like a battery except that, rather than relying on a chemical reaction to store and release energy, it allows electrical charge to build up on a series of conducting plates separated by an insulator.
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The energy source - a hybrid battery and supercapacitor - was developed by researchers at Rensselaer Polytechnic Institute in Troy, New York, US. A capacitor is like a battery except that, rather than relying on a chemical reaction to store and release energy, it allows electrical charge to build up on a series of conducting plates separated by an insulator.
Read more...
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