Fig. 2: Synthesis and structural analysis of PhCu MOPs.
From: σ-π dative bond stabilizing copper active site drives CO2 electrocatalysis to hydrocarbon
a Transmission electron microscopy (TEM) images of OMe-PhCu. b High-angle annular dark-field scanning TEM (HAADF-STEM) image and the corresponding energy dispersive spectroscopy mapping images. c Raman spectra of OMe-PhCu and corresponding phenylacetylene based ligands precursors. d Cu 2p XPS spectra of PhCu MOPs. e, f X-ray absorption spectroscopy (XAS) of PhCu MOPs and reference samples. e The Cu K-edge X-ray absorption near-edge structure (XANES) spectra. f Magnitude of Fourier-transformed Cu K-edge extended X-ray absorption fine structure spectroscopy (EXAFS) spectra. χ(k) is the extracted EXAFS signal, k is the photoelectron momentum and R is the radial distance without phase correction. Source data are provided as a Source Data file.
