Answers are grounded in this paper and cite their sources.
The gravimetric surface density and ORR catalytic turnover frequency of Fe–NC and Fe/Ni–NC catalysts were investigated. Both catalysts feature chemically identical Fe sites, but the presence of Ni lowered the gravimetric surface density of Fe sites.
No takes yet. Share an insight, caveat, or question.
Luo et al. (2020) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: