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Innovative zero-emissions fuel sources MIT engineers have unveiled a sustainable energy solution using recycled soda cans and seawater. When pure aluminum reacts with seawater, it generates hydrogen gas, a zero-emission fuel. Adding caffeine significantly enhances this reaction. In Cell Reports Physical Science , researchers present a method to  produce hydrogen gas by introducing pretreated aluminum  pellets into filtered seawater. The aluminum, treated with a rare-metalalloy, reacts with seawater, while salt ions hel p recover the alloy for reuse, creating a sustainable hydrogen generation cycle. The researchers observed that the reaction between aluminum and seawater  produced hydrogen gas at a slow rate. However, u pon adding coffee grounds ex perimentally, they discovered a notable acceleration in the reaction. The study revealed that even a small dose of imidazole, found in caffeine, could significantly hasten the reaction, achieving the same hydrogen production i...