Researchers at Vanderbilt University are making something useful out of carbon dioxide pulled from the air: Small-diameter carbon nanotubes. Their CNTs are not only higher quality, but the process to make them is cheaper than current methods.
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Researchers from Vanderbilt University in Nashville, Tenn., used scraps steel and brass to create what they say is the world’s first steel-brass battery that can store energy at levels comparable to lead-acid batteries.
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