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Message: <blockquote data-quote="imhotep" data-source="post: 28808333" data-attributes="member: 562115">FYI... Copy of a post done on the 14 April 2022.There were recent advances made by Caltech to generate electricity from sea-water using rust. It uses the Electrokinetic effect, using thin films of graphene—sheets of carbon atoms arranged in a hexagonal lattice - at a remarkable efficiency of 30%.A Solar panel is about 20% efficient.Large sale Graphene films are not very practical yet, and they developed a thin film of rust - a film of iron oxide between 2 - 10 nm thick on large plates. A 10 sqm plate would generate a kW or so and useful for remote locations.The mechanism behind the electricity generation is complex, involving ion adsorption and desorption. The ions present in saltwater attract electrons in the iron beneath the layer of rust. As the saltwater flows, so do those ions, and through that attractive force, they drag the electrons in the iron along with them, generating an electrical current.</blockquote>

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