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False-color time-lapse images captured via high-speed imaging show a droplet jumping from a superhydrophobic copper oxide fin to a hydrophilic copper fin (Image: Nenad Miljkovic and Daniel J. Preston/MIT)
Harvesting electricity from condensation could take renewable power to remote areas (Photo: Nenad Miljkovic and Daniel J. Preston/MIT)
Images from a field emission scanning electron microscope show: on the left, an oxidized copper-oxide surface; on the right, a copper-oxide surface with a 30 nanometer-thick hydrophobic coating (Image: Nenad Miljkovic and Daniel J. Preston/MIT)
MIT researchers have found a way to generate small amounts of electricity from condensation, by having electrically-charged droplets jump between superhydrophobic (water-repelling) and hydrophilic (water-attracting) metal plates. The advance could be especially useful in remote areas or developing countries, not least because it produces clean water as a side product.
Read the full article: New device generates electricity from condensation
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