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Solar Hydrogen Generator Readies for Market

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Joined: 20 Mar 2006
Posts: 1273
Location: Kent (East Hill), WA

PostPosted: Thu Jun 16, 2011 8:58 am    Post subject: Solar Hydrogen Generator Readies for Market Reply with quote

Solar generator splits water to make hydrogen

What's different is that Nanoptek's device can produce hydrogen from water using about one-third the energy of a typical electrolyzer, said CEO John Guerra. The key is a nanomaterial coating on titanium that captures a relatively broad spectrum of sunlight, including ultraviolet light, he explained.

Its photocatalyst material is a titanium dioxide nanostructure that's baked onto strips of titanium metal. That coating "stresses" the surface of the titanium, which has the advantage of making it easier for it to release an electron and start a flow of electricity in sunlight, Guerra explained.

Because the photo catalyst reacts well to ultraviolet light, the solar hydrogen generator can work well on cloudy days, he added. The company calls it a hybrid device because the generator can operate as a traditional electrolyzer from grid power when there is no sunlight available.
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