1. Hydride phase formation in carbon supported palladium hydride nanoparticles by in situ EXAFS and XRD
- Author
-
Lusegen A. Bugaev, Kirill A. Lomachenko, Elena Groppo, Andrea Lazzarini, Alexander A. Guda, V. V. Srabionyan, Riccardo Pellegrini, Vladimir Dmitriev, Carlo Lamberti, Alexander V. Soldatov, Andrea Piovano, Aram L. Bugaev, J. A. van Bokhoven, Jenny G. Vitillo, Southern Fed Univ, Zorge St 5, Rostov Na Donu 344090, Russia, Univ Turin, Dept Chem, Via P Giuria 7, I-10125 Turin, Italy, Univ Insubria, Dipartimento Sci & Alta Tecnol, Via Valleggio 11, I-22100 Como, Italy, Institut Laue-Langevin (ILL), ILL, European Synchrotron Radiation Facility (ESRF), Chimet SpA, Catalyst Div, Via Pescaiola 74, I-52041 Arezzo, Italy, Institute for Chemical and Bioengineering [ETH Zürich] (ICB), Department of Chemistry and Applied Biosciences [ETH Zürich] (D-CHAB), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich)- Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), and PSI, SLS, Lab Catalysis & Sustainable Chem, Villigen, Switzerland
- Subjects
History ,Absorption spectroscopy ,XRD ,Analytical chemistry ,chemistry.chemical_element ,Palladium hydride ,02 engineering and technology ,01 natural sciences ,7. Clean energy ,Education ,chemistry.chemical_compound ,0103 physical sciences ,XRD, EXAFS, palladium hydrate, PdH, XANES ,[PHYS]Physics [physics] ,010304 chemical physics ,Extended X-ray absorption fine structure ,Hydride ,palladium hydrate ,021001 nanoscience & nanotechnology ,Nanomaterial-based catalyst ,XANES ,Computer Science Applications ,PdH ,EXAFS ,chemistry ,Atomic ratio ,0210 nano-technology ,Carbon - Abstract
International audience; In the current work we present a detailed analysis of the hydride phase formation in industrial Pd/C nanocatalysts by means of combined in situ X-ray absorption spectroscopy (EXAFS), X-ray diffraction (XRD) and volumetric measurements for the temperatures from - 10 to 50 degrees C in the hydrogen pressure range from 0 to 1000 mbar. alpha- and beta- hydride phases are clearly distinguished in XRD. For the first time, H/Pd atomic ratio were obtained by theoretical fitting of the near-edge region of the absorption spectra (XANES) and compared with volumetric measurements
- Published
- 2016
- Full Text
- View/download PDF