Fig. 2: Physical characterization of the COFs. | Nature Communications

Fig. 2: Physical characterization of the COFs.

From: Bioinspired design of Na-ion conduction channels in covalent organic frameworks for quasi-solid-state sodium batteries

Fig. 2: Physical characterization of the COFs.The alternative text for this image may have been generated using AI.

a FTIR spectra of TPBD, TPDBD, BD, DBD, and TP. b Partial unit structures of TPBD and TPDBD. c 13C CP-MAS solid-state NMR spectra of TPBD, TPDBD, and TP. d XPS C 1s spectra of TPBD, TPDBD, and TPDBD-CNa. e XPS O 1s spectra of TPBD, TPDBD, and TPDBD-CNa. f SEM image of TPDBD.

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