![]() Researchers at the University of Tokyo constructed a display made of organic light-emitting diodes (OLEDs) paired with a rubbery, nanotube-based conductor. These speakers aren’t the only bendable electronics that can be made with CNTs. Unlike conventional speakers, which make noise by vibrating the surrounding air molecules, these CNT speakers use the thermoacoustic effect (similar to how lightning produces thunder) where an electric current runs through the nanotube sheets, heating and expanding the air near them, creating sound waves. Chinese researchers have created flexible, paper-thin speakers out of nanotube sheets. Other researchers have discovered that bundles of CNTs doped with nitrogen form a more efficient and compact catalyst for hydrogen cars than a platinum one. Researchers from the University of North Carolina say that their nanotube-based imaging system could take sharper, faster pictures than today’s X-rays or CT scans. MWNT-containing paints have also been found to reduce biofouling of ship hulls, discouraging the attachment of algae and barnacles, making it an environmental alternative to hazardous, biocide-containing paints. Additionally, CNTs have been found to be a more environmentally-friendly, flame-retardant additive to plastics. In the future, CNTs will likely compete with carbon fiber for high-end uses, particularly in weight-sensitive applications such as Kevlar. ![]() Their semiconducting properties make them candidates to replace existing computer chips. Potential Applications of Carbon Nanotubesīecause carbon nanotubes are highly electrically conductive, they have the ability to be a cost-effective replacement for metal wires. Carbon nanotubes are even being used to enhance sporting goods like tennis rackets, baseball bats, and bicycle frames. By 2005, 50% of lithium batteries incorporated carbon nanofibers, which are wires spun from CNTs. Examples include wind turbine blades and hulls for maritime security boats. Today, they are also used to enhance fiber composites. Multi-walled nanotubes (MWNTs) were first used as electrically conductive fillers in plastics. CNT production is also used in bulk composite materials and thin films. They are added to other materials like rebar to concrete because of their high strength, low weight, and flexibility. The most popular current use for CNTs is structural reinforcement. Carbon nanotubes are already being used to control or enhance conductivity in polymers and are added to anti-static packaging. Current Applications of Carbon NanotubesĬNTs have been making quite an impression on commercial products for some time now. Harnessed properly, the applications of CNTs are revolutionizing material science and technology. They also conduct heat and electricity better than copper. Carbon nanotubes are 100 times stronger than steel but at one-sixth the weight. background Layer 1 background Layer 1 Share this article on FacebookĪs nanotechnology continues to emerge as the scientific beacon of the future, carbon nanotubes (CNTs) are no exception.background Layer 1 background Layer 1 Share this article on Twitter.background Layer 1 background Layer 1 Share this article on LinkedIn.
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