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.

Details

Title
Hydride phase formation in carbon supported palladium hydride nanoparticles by in situ EXAFS and XRD
Author
Bugaev, A L 1 ; Guda, A A 2 ; Lomachenko, K A 1 ; Lazzarini, A 3 ; Srabionyan, V V 2 ; Vitillo, J G 4 ; Piovano, A 5 ; Groppo, E 3 ; Bugaev, L A 2 ; Soldatov, A V 2 ; Dmitriev, V P 6 ; Pellegrini, R 7 ; van Bokhoven, J A 8 ; Lamberti, C 1 

 Southern Federal University, Zorge Street 5, 344090 Rostov-on-Don, Russia; Department of Chemistry, University of Turin, Via P. Giuria 7, 10125 Turin, Italy 
 Southern Federal University, Zorge Street 5, 344090 Rostov-on-Don, Russia 
 Department of Chemistry, University of Turin, Via P. Giuria 7, 10125 Turin, Italy 
 Department of Chemistry, University of Turin, Via P. Giuria 7, 10125 Turin, Italy; Dipartimento di Scienza e Alta Tecnologia, Università dell'Insubria, Via Valleggio 11, 22100 Como, Italy 
 Institut Laue-Langevin (ILL), 6 Rue Jules Horowitz, F-38042, Grenoble, France 
 Southern Federal University, Zorge Street 5, 344090 Rostov-on-Don, Russia; SNBL at ESRF, 6 Rue Jules Horowitz, F-38042 Grenoble, France 
 Chimet SpA - Catalyst Division, Via di Pescaiola 74, I-52041 Arezzo, Italy 
 ETH Zurich, Institute for Chemical and Bioengineering, Zurich, Switzerland; Laboratory for Catalysis and Sustainable Chemistry, SLS, PSI, Villigen, Switzerland 
Publication year
2016
Publication date
May 2016
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2575112487
Copyright
© 2016. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.