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Most Americans agree that when it comes to fuel, we're quickly approaching "E." But Gerardine Botte, a chemical engineering professor at Ohio University, may have found a fuel cell solution to the petroleum problem. According to Botte, the answer is ammonia.

Put simply, Botte and her research team designed a little black box that takes hydrogen "in situ", or on-site, from ammonia and sends it on to a fuel cell. This technology could some day power road vehicles or even power homes.

Here, graduate student Purusha Bonnin uses a model to demonstrate how a hydrogen car would work.

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