Few younger readers will remember how popular hydrogen fuel cells were in the media a couple of decades ago. They came before electric cars. They were supposed to be the cleaner alternative to internal combustion engines. And they never really took off because hydrogen fuel cells were simply too costly to make. But people continued to work with hydrogen because it is the most abundant element in the universe, and its conversion into energy does not as a rule result in harmful by-products. A recent study by researchers from Kumamoto University found…

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