WashU Develops New Iron-Based Catalyst, Achieving 85% Hydrogen Fuel Efficiency

Researchers at Washington University in St. Louis (WashU) have successfully developed a stable and highly efficient iron-based catalyst to replace the traditional, expensive platinum catalyst, potentially slashing the cost of hydrogen fuel cell vehicles significantly. Currently, fuel cell vehicles sell for around $70,000—far higher than the approximately $30,000 price tag of comparable gasoline-powered cars—with platinum catalysts accounting for nearly 45% of the fuel cell stack’s cost. As platinum prices rise with demand, achieving economies of scale remains challenging. In contrast, using iron as an alternative material not only reduces costs but also enables hydrogen fuel systems to reach efficiencies as high as 85%, substantially improving the economic competitiveness of hydrogen-powered vehicles against both electric and internal combustion engine vehicles. This breakthrough represents a critical step toward commercializing hydrogen-based transportation.