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Studies from School of Materials Science and Engineering Update Current Data on Nanotechnology (Harvesting Water Wave Energy by Asymmetric Screening...

August 8, 2014



Studies from School of Materials Science and Engineering Update Current Data on Nanotechnology (Harvesting Water Wave Energy by Asymmetric Screening of Electrostatic Charges on a Nanostructured Hydrophobic Thin-Film Surface)

By a News Reporter-Staff News Editor at Energy Weekly News -- Researchers detail new data in Nanotechnology. According to news originating from Atlanta, Georgia, by VerticalNews correspondents, research stated, "Energy harvesting from ambient water motions is a desirable but underexplored solution to on-site energy demand for self-powered electronics. Here we report a liquid-solid electrification-enabled generator based on a fluorinated ethylene propylene thin film, below which an array of electrodes are fabricated."

Our news journalists obtained a quote from the research from the School of Materials Science and Engineering, "The surface of the thin film is charged first due to the water-solid contact electrification. Aligned nanowires created on the thin film make it hydrophobic and also increase the surface area. Then the asymmetric screening to the surface charges by the waving water during emerging and submerging processes causes the free electrons on the electrodes to flow through an external load, resulting in power generation. The generator produces sufficient output power for driving an array of small electronics during direct interaction with water bodies, including surface waves and falling drops. Polymer-nanowire-based surface modification increases the contact area at the liquid-solid interface, leading to enhanced surface charging density and thus electric output at an efficiency of 7.7%. Our planar-structured generator features an all-in-one design without separate and movable components for capturing and transmitting mechanical energy. It has extremely lightweight and small volume, making it a portable, flexible, and convenient power solution that can be applied on the ocean/river surface, at coastal/offshore areas, and even in rainy places."

According to the news editors, the research concluded: "Considering the demonstrated scalability, it can also be possibly used in large-scale energy generation if layers of planar sheets are connected into a network."

For more information on this research see: Harvesting Water Wave Energy by Asymmetric Screening of Electrostatic Charges on a Nanostructured Hydrophobic Thin-Film Surface. ACS Nano, 2014;8(6):6031-6037. ACS Nano can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; ACS Nano - www.pubs.acs.org/journal/ancac3)

The news correspondents report that additional information may be obtained from G. Zhu, Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332, United States. Additional authors for this research include Y.J. Su, P. Bai, J. Chen, Q.S. Jing, W.Q. Yang and Z.L. Wang.

Keywords for this news article include: Atlanta, Georgia, Electronics, United States, Nanotechnology, North and Central America

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Energy Weekly News


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