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Synchrotron-based structural and spectroscopic studies of ball milled RuSeMo and RuSnMo particles as oxygen reduction electrocatalyst for PEM fuel cells

Suarez Alcantara, Karina LU ; Ezeta-Mejia, A.; Ortega-Aviles, M.; Haase, Dörthe LU ; Arce-Estrada, E.; Gonzalez-Huerta, R. G.; Solorza-Feria, O. and Canton, S. E. (2014) In International Journal of Hydrogen Energy 39(29). p.16715-16721
Abstract
Particles of RuSeMo and RuSnMo have been produced by ball milling; they present catalytic activity towards the oxygen reduction reaction (ORR) in acid media. A Tafel slope close to 120 mV/dec was found for both materials. Their morphology was first characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). SEM and TEM images reveal particles in the sub-micrometer range. The structure of the materials was further probed with synchrotron radiation powder X-ray diffraction (SR-PXD) and X-ray absorption spectroscopy (XAS). SR-PXD reveals the existence of metallic Ru as the main phase and the formation of phases such as RuSe2 in RuSeMo and Ru3Sn7 in RuSnMo. Mo was found to form solid solution into the RuSe2... (More)
Particles of RuSeMo and RuSnMo have been produced by ball milling; they present catalytic activity towards the oxygen reduction reaction (ORR) in acid media. A Tafel slope close to 120 mV/dec was found for both materials. Their morphology was first characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). SEM and TEM images reveal particles in the sub-micrometer range. The structure of the materials was further probed with synchrotron radiation powder X-ray diffraction (SR-PXD) and X-ray absorption spectroscopy (XAS). SR-PXD reveals the existence of metallic Ru as the main phase and the formation of phases such as RuSe2 in RuSeMo and Ru3Sn7 in RuSnMo. Mo was found to form solid solution into the RuSe2 phase in ball milled RuSeMo. Finally, The Ru L-3-edge and Mo L-3-edge XAS fingerprints were correlated with the catalytic activity towards ORR. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ruthenium particles, Electrocatalyst, Fuel cells, Synchrotron radiation
in
International Journal of Hydrogen Energy
volume
39
issue
29
pages
16715 - 16721
publisher
Elsevier
external identifiers
  • wos:000343389700050
  • scopus:84907746237
ISSN
1879-3487
DOI
10.1016/j.ijhydene.2014.03.220
language
English
LU publication?
yes
id
67658f17-c895-4160-9c61-8b710cde2cfe (old id 4783695)
date added to LUP
2014-11-21 10:23:29
date last changed
2017-11-19 03:47:17
@article{67658f17-c895-4160-9c61-8b710cde2cfe,
  abstract     = {Particles of RuSeMo and RuSnMo have been produced by ball milling; they present catalytic activity towards the oxygen reduction reaction (ORR) in acid media. A Tafel slope close to 120 mV/dec was found for both materials. Their morphology was first characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). SEM and TEM images reveal particles in the sub-micrometer range. The structure of the materials was further probed with synchrotron radiation powder X-ray diffraction (SR-PXD) and X-ray absorption spectroscopy (XAS). SR-PXD reveals the existence of metallic Ru as the main phase and the formation of phases such as RuSe2 in RuSeMo and Ru3Sn7 in RuSnMo. Mo was found to form solid solution into the RuSe2 phase in ball milled RuSeMo. Finally, The Ru L-3-edge and Mo L-3-edge XAS fingerprints were correlated with the catalytic activity towards ORR. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.},
  author       = {Suarez Alcantara, Karina and Ezeta-Mejia, A. and Ortega-Aviles, M. and Haase, Dörthe and Arce-Estrada, E. and Gonzalez-Huerta, R. G. and Solorza-Feria, O. and Canton, S. E.},
  issn         = {1879-3487},
  keyword      = {Ruthenium particles,Electrocatalyst,Fuel cells,Synchrotron radiation},
  language     = {eng},
  number       = {29},
  pages        = {16715--16721},
  publisher    = {Elsevier},
  series       = {International Journal of Hydrogen Energy},
  title        = {Synchrotron-based structural and spectroscopic studies of ball milled RuSeMo and RuSnMo particles as oxygen reduction electrocatalyst for PEM fuel cells},
  url          = {http://dx.doi.org/10.1016/j.ijhydene.2014.03.220},
  volume       = {39},
  year         = {2014},
}