Fig. 1: Crystal structure information and Pd oxidation states and coordination environments. | Communications Engineering

Fig. 1: Crystal structure information and Pd oxidation states and coordination environments.

From: Palladium-assisted NOx storage and release on CexZr1-xO2 for passive NOx adsorber in diesel exhaust aftertreatment

Fig. 1

a High-resolution transmission electron microscopy (HRTEM) images and particle sizes distribution. b X-ray diffraction (XRD) patterns. c Normalized X-ray absorption fine spectroscopy (XAFS) of O K-edge. d In situ diffuse reflectance infrared Fourier transform spectrum (DRIFTS) of CO adsorption at 40 °C (1% CO+99% N2, a total flow rate of 50 mL·min-1). e Fourier-transformed extended X-ray absorption fine structure (EXAFS) spectra of Pd K-edge for Pd/0.75Ce, Pd/0.25Ce, Pd foil and PdO in the R-space. f Hydrogen temperature programmed reduction (H2-TPR) profiles.

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