Microscopy from Scientific Research

i) HRTEM image. ii) STEM-EDX mapping of NFs and iii) composition of the sample. iv) XPS spectrum of the O 1s core levels of CN-NFs. Were OLand ads. stand for lattice oxygens, and adsorbed or chemisorbed oxygen species, respectively. v) LSV curves for OER in O2-saturated 1MKOH, and vi) Voltammograms of CN-NFs during CV after selected cycles up to 2306 cycles. (vii) Tafel slopes of the HEOs as a function of the OV-concentration. Reproduced with permission.[56]Copyright 2023, Royal Society of Chemistry.

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