Fig. 2: Structural characterization of Pt–Co bimetallic catalysts. | Nature Communications

Fig. 2: Structural characterization of Pt–Co bimetallic catalysts.

From: Restructuring the interfacial active sites to generalize the volcano curves for platinum-cobalt synergistic catalysis

Fig. 2

a–d XRD patterns (a), H2-TPR profiles (b), XPS Pt 4 f spectra (c), XPS Co 2p spectra (d) for Pt/CNF and PtCox/CNF catalysts. XRD and XPS measurements were conducted on the fresh catalysts. H2-TPR measurement was performed on the unreduced catalyst precursors. e,f The differential electron density isosurfaces (e) and corresponding PDOS analysis of Pt 5d states (f) for Pt10Co3, Pt7Co6, and Pt2Co11. g The scheme of net electron and d electron transfer between Pt and Co within Pt–Co alloy.

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