Fig. 3 | Nature Communications

Fig. 3

From: Octahedral gold-silver nanoframes with rich crystalline defects for efficient methanol oxidation manifesting a CO-promoting effect

Fig. 3

Spectroscopy analysis on the structural evolution for all AuAg nanostructures. a X-ray diffraction (XRD) and b zoom-in spectra of Ag NPs, AuAg12 NPs, Au2Ag NCs, and Au3Ag NFs. c X-ray photoelectron spectroscopy (XPS) Au 4f and d Ag 3d spectra of AuAg12 NPs, Au2Ag NCs, and Au3Ag NFs. e X-ray absorption near-edge structure (XANES), and f zoom-in spectra obtained from the Au L3-edge absorption of AuAg12 NPs, Au2Ag NCs, and Au3Ag NFs in comparison to the gold foil

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