Fig. 5: X-Ray Absorption Spectroscopy (XAS) studies, at Ag K-Edge and Re L3-Edge. (a, b, c) XANES and FT-EXAFS spectra of the catalysts and standards before and after reaction with H2. (d, e, f) XAS studies coupled with a H2 Temperature-Programmed Reduction (TPR) experiment. | Nature Communications

Fig. 5: X-Ray Absorption Spectroscopy (XAS) studies, at Ag K-Edge and Re L3-Edge. (a, b, c) XANES and FT-EXAFS spectra of the catalysts and standards before and after reaction with H2. (d, e, f) XAS studies coupled with a H2 Temperature-Programmed Reduction (TPR) experiment.

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

Fig. 5

a Ag K-Edge XANES spectra before and after hydrogenation at 150 °C. b Re L3-Edge XANES spectra before and after hydrogenation at 150 °C. Monometallic [Re/Al2O3] (7.5 wt% Re) was hydrogenated at 280 °C. c Re L3-Edge FT-EXAFS spectra before and after hydrogenation at 150 °C. Monometallic [Re/Al2O3] (7.5 wt% Re) was hydrogenated at 280 °C. d In situ XAS-H2-TPR study following the variation of the Ag K-Edge peak at 25518 eV and Re L3-Edge peak at 10542 eV. e In situ XAS-TPR study of [AgRe/Al2O3] catalyst comparing simultaneously the variation of the Ag K-Edge and Re L3-Edge, most relevant species in XANES and FT-EXAFS. f In situ XAS-H2-TPR study of [AgRe0.35/Al2O3] catalyst comparing simultaneously the variation of the Ag K-Edge and Re L3-Edge, most relevant species in XANES and FT-EXAFS. Source data are provided as a Source Data file.

Back to article page