fig15

Figure 15. (A) STEM imaging and EELS spectra of FeN₄-TiC catalysts; (B) Kinetic currents extracted from linear sweep voltammograms of FeN₄-TiC and FeN₄-C catalysts at the beginning of life (BoL) and end of life (EoL); (C) DFT-calculated free energy diagram of FeN₄-TiC and FeN₄-C for ORR; (D) Cyclic voltammograms of the Fe-N-C and Fe-N-TiCcatalysts in their pristine state and after 1,000 cycles of the catalyst corrosion resistance stability protocol. Reproduced with permission. Copyright 2021, Chemistry Europe^[216]; (E) TEM and (F) high-resolution TEM (HRTEM) image of Fe₃C@N/C-1; (G) Linear sweep voltammetry (LSV) curves; (H) Current-time chronoamperometric response of Fe₃C@N/C-1 catalyst and Pt/C. Reproduced with permission. Copyright 2019, MDPI^[217].