Researchers develop Na-ion direct formate fuel cell for co-production of electricity and hydrogen
2 Na-DFFC). A paper on their work is published in the
Journal of Power Sources.
Using formate a solar fuel that can be readily synthetized from carbon dioxide the researchers reported that a proof-of-concept e-h
2 Na-DFFC yielded a peak power density as high as 168 mW cm
−2 at 380 mA cm
−2, with the hydrogen production rate reaching 2.9 mL min
−1 cm
−2.
More importantly, the approximate 100% purity and over 98.9% Faradic efficiency suggest the great potential of this electricity-hydrogen co-production device. … This proposed e-h2 Na-DFFC provides a new pathway for renewable hydrogen production.