carbon nanotubes – The InfoGreenGlobal https://infogreenglobal.com The InfoGreenGlobal Mon, 18 Mar 2024 16:18:07 +0000 en-US hourly 1 Unzipped carbon nanotubes could help energize fuel cells and batteries https://infogreenglobal.com/unzipped-carbon-nanotubes-could-help-energize-fuel-cells-and-batteries/ https://infogreenglobal.com/unzipped-carbon-nanotubes-could-help-energize-fuel-cells-and-batteries/#respond Tue, 29 May 2012 17:28:22 +0000 http://infogreenglobal.com/?p=5283 Multi-walled carbon nanotubes riddled with defects and impurities on the outside could replace some of the expensive platinum catalysts used in fuel cells and metal-air batteries, according to scientists at Stanford University. Their findings are published in the May 27 online edition of the journal Nature Nanotechnology. “Platinum is very expensive and thus impractical for […]

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Solar cell using carbon nanotubes turns windows into generators https://infogreenglobal.com/solar-cell-using-carbon-nanotubes-turns-windows-into-generators/ https://infogreenglobal.com/solar-cell-using-carbon-nanotubes-turns-windows-into-generators/#respond Wed, 21 Mar 2012 19:27:19 +0000 http://infogreenglobal.com/?p=4849 Imagine a world where the windows of high-rise office buildings are powerful energy producers, offering its inhabitants much more than some fresh air, light and a view. For the past four years a team of researchers from Flinders University has been working to make this dream a reality – and now the notion of solar-powered […]

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Carbon nanotubes can store solar energy indefinitely https://infogreenglobal.com/carbon-nanotubes-can-store-solar-energy-indefinitely/ https://infogreenglobal.com/carbon-nanotubes-can-store-solar-energy-indefinitely/#respond Thu, 14 Jul 2011 11:38:41 +0000 http://infogreenglobal.com/?p=3552 A novel application of carbon nanotubes, developed by MIT researchers, shows promise as an innovative approach to storing solar energy for use whenever it’s needed. Storing the sun’s heat in chemical form — rather than converting it to electricity or storing the heat itself in a heavily insulated container — has significant advantages, since in […]

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Harnessing ambient electromagnetic energy at very low cost https://infogreenglobal.com/harnessing-ambient-electromagnetic-energy-at-very-low-cost/ https://infogreenglobal.com/harnessing-ambient-electromagnetic-energy-at-very-low-cost/#respond Mon, 11 Jul 2011 20:30:24 +0000 http://infogreenglobal.com/?p=3537 Researchers have discovered a way to capture and harness energy transmitted by such sources as radio and television transmitters, cell phone networks and satellite communications systems. By scavenging this ambient energy from the air around us, the technique could provide a new way to power networks of wireless sensors, microprocessors and communications chips. “There is […]

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Self-cooling effect in graphene at nanoscale https://infogreenglobal.com/self-cooling-effect-in-graphene-at-nanoscale/ https://infogreenglobal.com/self-cooling-effect-in-graphene-at-nanoscale/#comments Mon, 04 Apr 2011 18:58:43 +0000 http://infogreenglobal.com/?p=2949 With the first observation of thermoelectric effects at graphene contacts, University of Illinois researchers found that graphene transistors have a nanoscale cooling effect that reduces their temperature. The speed and size of computer chips are limited by how much heat they dissipate. All electronics dissipate heat as a result of the electrons in the current […]

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Nanoscale Photodetectors Detect the Speed of Electrons https://infogreenglobal.com/nanoscale-photodetectors-detect-the-speed-of-electrons/ https://infogreenglobal.com/nanoscale-photodetectors-detect-the-speed-of-electrons/#respond Thu, 20 Jan 2011 17:08:49 +0000 http://infogreenglobal.com/?p=2095 Scientists led by Professor Alexander Holleitner, physicist at the Technische Universität Muenchen (TUM), have found a way to directly measure the time during which photo-excited electrons flow in nanoscale photodetectors (“Time-Resolved Picosecond Photocurrents in Contacted Carbon Nanotubes“). In solar cells and photodetectors, an optical radiation excites electrons to higher energy states thereby a photocurrent begins […]

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Graphene is the new electronic material for high-performance devices https://infogreenglobal.com/graphene-is-the-new-electronic-material-for-high-performance-devices/ https://infogreenglobal.com/graphene-is-the-new-electronic-material-for-high-performance-devices/#respond Fri, 07 Jan 2011 08:12:39 +0000 http://infogreenglobal.com/?p=1996 That material, the focus of the 2010 Nobel Prize in physics, is graphene – a fancy name for extremely thin layers of ordinary carbon atoms arranged in a “chicken-wire” lattice. These layers, sometimes just a single atom thick, conduct electricity with virtually no resistance, very little heat generation – and less power consumption than silicon. […]

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A greener way to grow carbon nanotubes https://infogreenglobal.com/a-greener-way-to-grow-carbon-nanotubes/ https://infogreenglobal.com/a-greener-way-to-grow-carbon-nanotubes/#respond Fri, 12 Nov 2010 19:32:37 +0000 http://infogreenglobal.com/?p=1513 Study suggests new way for manufacturers to minimize environmental impact of carbon nanotube production Given their size, strength and electrical properties, carbon nanotubes — tiny, hollow cylinders made of carbon atoms — hold promise for a range of applications in electronics, medicine and other fields. Despite industrial development of nanotubes in recent years, however, very […]

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Carbon Nanotube Membranes Could Provide Cheaper Carbon Dioxide Sequestration https://infogreenglobal.com/carbon-nanotube-membranes-could-provide-cheaper-carbon-dioxide-sequestration/ https://infogreenglobal.com/carbon-nanotube-membranes-could-provide-cheaper-carbon-dioxide-sequestration/#respond Sat, 23 Oct 2010 19:22:24 +0000 http://infogreenglobal.com/?p=1349 Researchers in carbon nanotubes, originally developed at the Laboratory, have been awarded more than $100,000 by the California Energy Commission to apply the technology to curbing industrial pollution. Hayward-based Porifera, Inc., headed by former Lab scientist Olgica Bakajin, was awarded $115,397 for a project to research and develop carbon nanotube membranes to efficiently separate carbon […]

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New self-assembling photovoltaic technology that repairs itself https://infogreenglobal.com/new-self-assembling-photovoltaic-technology-that-repairs-itself/ https://infogreenglobal.com/new-self-assembling-photovoltaic-technology-that-repairs-itself/#comments Mon, 06 Sep 2010 19:45:58 +0000 http://infogreenglobal.com/?p=938 Molecules can turn sunlight into electricity and can be broken down and quickly reassembled. Plants are good at doing what scientists and engineers have been struggling to do for decades: converting sunlight into stored energy, and doing so reliably day after day, year after year. Now some MIT scientists have succeeded in mimicking a key […]

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