Fig. 2: Local coordination structure of Pt/PtBi–SiO2 samples.
From: Unique structure of active platinum-bismuth site for oxidation of carbon monoxide
Pt L3–edge a XANES profiles, b EXAFS fitting results in R space and Bi L3–edge c XANES profiles of Pt/PtBi–SiO2 samples; d in-situ DRIFTS experiments for CO adsorption of 1Pt2Bi-SiO2 and 1Pt-SiO2-400; e Schematic demonstration on platinum-bismuth oxide clusters, platinum oxide clusters, and metallic Pt particles.
