Fuel cells with neutral phosphate buffer, alkaline, and acid solutions, including in microbial fuel cells (MFC) and metal-air batteries
The technology is an oxygen reduction reaction (ORR) catalyst made of nitrogen-enriched graphite shells with iron-based composite nanorod cores. This nitrogen-enriched graphite iron nanorod catalyst, in specific tests conducted with an H-type MFC, has a measured charge efficiency of 57%, outperforming the charge efficiency of a conventional platinum-based catalyst by more than a factor of 1.75. This advanced electrocatalyst has a kinetic current density of 26.89 mA cm-2 at 0V, compared to 14.20 mA cm-2 for platinum-based catalysts.
US patent US10128510B2 was granted in 2018.
Junhong Chen & Zhenhai Wen
Wen et al. “Nitrogen-Enriched Core-Shell Structured Fe/Fe3C-C Nanorods as Advanced Electrocatalysts for Oxygen Reduction Reaction,” Advanced Materials, Volume 24, Issue 11, February 2012
Xiao et al. “Carbon/iron/based nanorod catalysts for hydrogen production in microbial electrolysis cells,” Nano Energy, Volume 1, June 2012
For further information please contact:
Smruti Patil, Ph.D., IPMM | Licensing Associate | Tel: 414-906-4657
UWM Research Foundation | 1440 East North Avenue| Milwaukee, WI 53202