Fig. 3: Characterization of selected nanomaterials and study of the effect of ex situ hydrogenation. | Nature Communications

Fig. 3: Characterization of selected nanomaterials and study of the effect of ex situ hydrogenation.

From: Building lactams by highly selective hydrodeoxygenation of cyclic imides using an alumina-supported AgRe bimetallic nanocatalyst

Fig. 3

All thermal reduction treatments were done at the specified T (°C) during 2 h (150 or 280 °C) with a heating rate of 2 °C/min under H2 flow (100 mL/min). a X-Ray Powder Diffraction (XRPD). Ref. code used for AgReO4 (ICDDN 00-008-095). Ref. code used for Ag0 (00-003-0921). Ref. code used for Re0 (00-005-0702). See Supplementary Fig. 11 for assignation of Miller indexes of the more intense diffractions. The detected species are in the black line boxes. b H2-Temp.-Programmed Red. (H2-TPR). c UV-Vis Diffuse Reflectance Spec. (UV-Vis DRS). “After 1 h” indicates that material was measured after having been under reaction conditions for 1 h. d RAMAN spectroscopy. The detected species are in the box with black lines. e High-Angle Annular Dark-Field Scanning Transmission Electron Microscopy (HAADF-STEM) and Energy-Dispersive X-Ray (XEDS) mapping analysis of freshly prepared [AgRe/Al2O3]. f HAADF-STEM and XEDS of [AgRe/Al2O3] previously reduced at 150 °C, named [AgRe/Al2O3]-H2-150. Source data for Fig. 3a–d are provided as a Source Data file.

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