Fig. 2: Characterizations of the morphology and structure of Sb-NSCF. | Nature Communications

Fig. 2: Characterizations of the morphology and structure of Sb-NSCF.

From: Sb2S3-templated synthesis of sulfur-doped Sb-N-C with hierarchical architecture and high metal loading for H2O2 electrosynthesis

Fig. 2: Characterizations of the morphology and structure of Sb-NSCF.The alternative text for this image may have been generated using AI.

a Top-view SEM image of Sb-NSCF. b Side-view SEM image of Sb-NSCF. c Enlarged view in (b), showing the morphology of the hollow carbon nanofibers. d, e TEM images of Sb-NSCF at different magnifications. Inset of e shows the SAED of Sb-NSCF, suggesting the amorphous nature of the carbon shells. The thickness of the carbon shells is ~5.7 nm. f EDS elemental mapping of Sb-NSCF, suggesting the uniform distributions of C, N, O, S, and Sb elements. g HAADF-STEM images of Sb-NSCF, revealing the dense dispersion of the Sb single atoms. h Chart showing the percentages of Sb, S, N, O, and C elements in Sb-NSCF measured by XPS. i N2 adsorption-desorption isotherms of Sb-NSCF with the inset showing the corresponding pore size distribution. Sb-NSCF has a BET-specific surface area of 445.4 m2 g−1.

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