Particularly, the OER performance was about 9 times higher than that of state - of - the - art precious metal oxide IrO2 at overpotential of 0.3 V. Furthermore, it also demonstrated notable charge - discharge stability even at high current density in Zn - air batteries. (sciencedaily.com)
Likewise, lower overpotentials usually translate to inefficiencies from slower turnover frequencies. (pnnl.gov)
Nickel - gallium thin films of various stoichiometries were found to reduce CO2 to methane, ethane, and ethylene, at overpotentials lower than the best polycrystalline catalyst, copper. (solarfuelshub.org)