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New carbon structure helps fuel cells hit 2.12 amps per square cm
New research demonstrates PtCo catalysts on radial nanochannel-array carbon supports achieve 2.12 amps per square cm in fuel cells, improving performance for heavy-duty vehicles.
Fuel cells are achieving a current density of 2.12 amps per square centimeter thanks to a newly engineered carbon support. Researchers detail the creation of radial nanochannel-array carbon spheres (RNCS) featuring open-through-grooved mesopores, designed to uniformly assemble platinum-cobalt intermetallic nanoparticles. This unique structure yields exceptional thermal and electrochemical stability, even at a high platinum content of 40 weight percent, and retained 82.5% performance after a rigorous accelerated stress test of 150,000 voltage cycles under heavy-duty vehicle conditions. The RNCS support enables these benefits in a single catalyst due to its ordered mesoporous structures and effective nanoconfinement. A newly engineered carbon support has facilitated a current density of 2.12 amps per square centimeter…
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