426
A. Mathur et al.
Fig. 9 Demonstrates various forms of nitrogen as identified using XPS on the basis of different
binding energy exhibited by them. Reprinted (Adapted) with permission from reference 25, 26.
Copyright (2019) American Chemical Society
Fig. 10 Plot representing atomic percentage of Fe-N, Ngr and Ngr:Fe-N with respect to ORR
activity at 0.80 V. Reprinted (adapted) with permission from [27]. Copyright (2012) American
Chemical Society
A. Mathur et al.
Fig. 9 Demonstrates various forms of nitrogen as identified using XPS on the basis of different
binding energy exhibited by them. Reprinted (Adapted) with permission from reference 25, 26.
Copyright (2019) American Chemical Society
Fig. 10 Plot representing atomic percentage of Fe-N, Ngr and Ngr:Fe-N with respect to ORR
activity at 0.80 V. Reprinted (adapted) with permission from [27]. Copyright (2012) American
Chemical Society