Zeolitic-imidazolate-framework-derived Fe-NC catalysts towards efficient oxygen reduction reaction

Preparation of Fe-BN-C catalysts derived from ZIF-8 and their performance in the oxygen reduction reaction

“…To elucidate the elemental states of the catalysts, the N 1s XPS spectrum of the anti-fold product was examined, which exhibited peaks corresponding to the five nitrogen species, namely, pyridine-N (398.4 eV), Fe–N (398.7 eV), pyrrole-N (399.6 eV), graphite-N (401.1 eV), and oxide-N (402.5 eV), as presented in Fig. 4b and S2a † 29–31 . In all the samples, graphite-N was reported to be the most abundant nitrogen species.…”

“…4b and S2a. † [29][30][31] In all the samples, graphite-N was reported to be the most abundant nitrogen species. Previous research has demonstrated the pivotal role of graphite-N in the formation of Fe-N X and the promotion of the four-electron transfer process of ORR.…”

Agri-waste derived electroactive carbon–iron oxide nanocomposite for oxygen reduction reaction: an experimental and theoretical study

“…Also, ORR activity is determined by the overall activity of the catalyst and the exposed active sites. 4 The non-precious (Mn, Fe, Co, and Ni-based), [5][6][7][8] metalnitrogen-carbon, 9 hetero-atoms doped carbon materials, 10,11 based electrocatalysts have gained attention due to sufficient active sites, close to 4e − reduction pathway, and long-term durability. 12 Further, lignin-rich biomass-derived carbon has attracted attention to developing greener, economic biomassbased electrocatalysts due to low-cost, high, and stable electrocatalytic activity.…”

“…16 J. Ren et al synthesized zeolitic-imidazolate-framework-derived Fe-NC catalysts with good ORR activity. 4 Among biomass, bagasse is one of the vital agri-waste due to easy availability, cheap, cellulose, hemicellulose, and lignin-rich. 17,18 To reach out the demands of ORR electrocatalysts by tapping into the potential of biomass-derived precursors, mainly bagasse.…”

“…Also, ORR activity is determined by the overall activity of the catalyst and the exposed active sites. 4 …”