Nagoya University reports that its Pt@N-FLG/SWCNT catalyst retains 96.9% of its electrochemical surface area after 30,000 accelerated cycles, boosting fuel cell durability.
Researchers at Nagoya University report a new cathode catalyst architecture for polymer-electrolyte fuel cells. Their approach encapsulates platinum nanoparticles in layered nitrogen-doped graphene and bonds those particles to single-walled carbon nanotubes, Nagoya University says.
The composite material, named Pt@N-FLG/SWCNT, produced an electrochemical surface area of 96.3 m² per gram of platinum and a mass activity of 369 mA mg⁻¹ at 0.9 V versus the reversible hydrogen electrode in laboratory tests, according to a peer-reviewed paper in ACS Catalysis. Those metrics exceeded the performance of a commercial Pt/C reference used in the same experiments, the paper shows.
Membrane-electrode assembly testing under accelerated durability cycles — designed…
