RESEARCH / A0458
Asymmetric Coupled Binuclear-Site Catalysts for Low-Temperature Selective Acetylene Semi-hydrogenation
Read the original paper · 10.1002/anie.202414719 ↗
Source figures may contain other techniques and soft X-ray spectra. C, N and O measurements are outside our current hard-XAFS testing range.
Figure 3. The detailed characterization of representative HBSCs. (a) Atomic-resolution HAADF-STEM image of Pt1Pd1 TiO2 and the profile of the integrated pixel intensity along the lattice row. Scale bar, 2 nm. (b) CO-probe diffuse reflectance infrared Fourier transform spectroscopy spectra of Pt1 TiO2, Pd1 TiO2, and Pt1Pd1 TiO2. The yellow, cyan, gray, and red balls denote Pt, Pd, C, and O atoms. (c–d) Pt 4f (c) and Pd 3d (d) core-level XPS spectra of Pt1 TiO2, Pd1 TiO2, and Pt1Pd1 TiO2. (e–f) Pd K-edge (e) and Pt L3-edge (f) and Fouriertransformed extended X-ray absorption fine structure spectra Pt1 TiO2, Pd1 TiO2, and Pt1Pd1 TiO2. The inset in (f) is the atomic structure of Pt1Pd1 TiO2. The yellow, cyan, blue, and red balls denote Pt, Pd, Ti, and O atoms.