Hydride phase formation in carbon supported palladium hydride nanoparticles by in situ EXAFS and XRD. (May 2016)

• Record Type: Journal Article
• Authors: Bugaev, A L; Guda, A A; Lomachenko, K A; Lazzarini, A; Srabionyan, V V; Vitillo, J G; Piovano, A; Groppo, E; Bugaev, L A; Soldatov, A V; Dmitriev, V P; Pellegrini, R; van Bokhoven, J A; Lamberti, C
• Is Part Of: Journal of physics. Volume 712(2016)
• Publication Date: 2016-05
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/712/1/012032
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: 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 °C in the hydrogen pressure range from 0 to 1000 mbar. α- and β- 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.