Fig. 2: Spectral and structural comparison of 2,3-DHTA-COF and Co-2,3-DHTA-COF.
From: Designing covalent organic frameworks with Co-O4 atomic sites for efficient CO2 photoreduction
a FTIR spectra. b Experimental and simulated X-ray diffraction (XRD) patterns. c N2 adsorption-desorption isotherms. d Pore size distribution calculated by the non-local density functional theory (NLDFT) model. e SEM images. f–g High-resolution TEM images. h Energy dispersive X-ray (EDX) maps of Co-2,3-DHTA-COF, with oxygen mapped in green, carbon mapped in red, nitrogen mapped in yellow, and cobalt mapped in purple. Scale bar: 100 nm.
