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Metallic nanofoam wrings hydrogen out of water more efficiently

Hydrogen could be a key renewable fuel source in future, but considering it's the most abundant element in the universe it's surprisingly tricky to produce. Zapping hydrogen out of water through a process called electrolysis is the cleanest way, but the catalysts required are rare-Earth metals like platinum. Researchers at Washington State University have now developed a quick and inexpensive alternative, making a "nanofoam" catalyst out of nickel and iron that they say performed better than usual.
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