Fig. 2: Synthesis and structural characterization of O–C(M). | Nature Communications

Fig. 2: Synthesis and structural characterization of O–C(M).

From: Atomically dispersed Lewis acid sites boost 2-electron oxygen reduction activity of carbon-based catalysts

Fig. 2: Synthesis and structural characterization of O–C(M).

a SEM image of O–C(Al), scale bar is 5 μm. High-resolution TEM (b) and aberration-corrected HAADF-STEM (c) images of O–C(Al), scale bars are 5 and 2 nm, respectively. d Powder XRD patterns for simulated Al and Al2O3, as-synthesized O–C(Al) and commercial Al2O3. e High-resolution XPS spectra of Al 2p in O–C(Al) and Al2O3. f Al solid-state NMR patterns of O–C(Al) and Al2O3. g Al K-edge XANES and h k3-weighted Fourier transform of EXAFS spectra. i The EXAFS R-space fitting curve of O–C(Al).

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