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. Author manuscript; available in PMC: 2019 Jul 9.
Published in final edited form as: ACS Appl Mater Interfaces. 2019 Jun 19;11(26):22932–22940. doi: 10.1021/acsami.9b04663

Figure 2.

Figure 2

Characterization of the hRNFs. Representative (a, b) SEM images, (c) TEM image, (d) HAADF-STEM image, (e–i) STEM-EDS elemental maps (C, N, O, P, and Mg) corresponding to d, merged images of (j) C and Mg maps, (k) N and Mg maps, and (l) SEM image of the orthogonal cross-section of a single hRNF sliced by FIB. Scale bars: 500 nm.