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Researchers developed highly ordered, ultra-dense intermetallic nanocrystals as catalysts for proton exchange membrane fuel cells, demonstrating exceptional durability in heavy-duty applications. Through precise control of nanocrystal ordering and density, the team achieved catalyst performance that projects fuel cell lifetimes exceeding 240,000 hours under accelerated stress testing conditions. The intermetallic structure provides enhanced resistance to degradation mechanisms that typically limit catalyst longevity in fuel cell operations.
Why it matters
This breakthrough addresses a critical barrier to commercial adoption of fuel cells in heavy-duty transportation, where durability requirements far exceed current capabilities. A projected lifetime of 240,000 hours could make fuel cell trucks and buses economically competitive with diesel vehicles, potentially accelerating the transition to zero-emission heavy transport.
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