More Powerful Fuel Cells Get Closer To Market

High-temperature fuel cells promise clean, efficient energy in quantities large enough to power cities. But, so far, they’ve been too expensive for widespread use. One major problem is the sulfur in fossil fuels, such as coal, oil, and natural gas, which contaminates the hydrogen gas that runs the cells. The sulfur attacks and degrades a part of the fuel cell called the anode, reducing power production — and eventually shutting down the cell.

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