On the chemical interaction of nanoscale lanthanum doped strontium titanates with common scandium and yttrium stabilized electrolyte materials

Burnat, Dariusz Artur; Heel, Andre; Holzer, Lorenz; Otal, Eugenio H.; Kata, Dariusz; Graule, Thomas J.

doi:10.1016/j.ijhydene.2012.09.022

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	On the chemical interaction of nanoscale lanthanum doped strontium titanates with common scandium and yttrium stabilized electrolyte materials
Authors:	Burnat, Dariusz Artur Heel, Andre Holzer, Lorenz Otal, Eugenio H. Kata, Dariusz Graule, Thomas J.
DOI:	10.1016/j.ijhydene.2012.09.022
Published in:	International Journal of Hydrogen Energy
Volume(Issue):	37
Issue:	23
Page(s):	18326
Pages to:	18341
Issue Date:	2012
Publisher / Ed. Institution:	Elsevier
ISSN:	0360-3199
Language:	English
Subject (DDC):	540: Chemistry 620.11: Engineering materials
Abstract:	Chemical interactions between common electrolyte materials and various La doped strontium titanates (LST), which are redox-stable candidates for SOFCs anodes, were thoroughly investigated. The reactions of nanosized reagents were studied by SEM/EDX microscopy and XRD with subsequent Rietveld refinement. It was found that all A-site deficient LSTs promoted a reaction with Sc and Y stabilized zirconia, whilst stoichiometric LST was chemically stable. Detected structural and microstructural changes were solely assigned to high mobility of Ti. Diffusion of Ti into the zirconia structure promoted formation of tetragonal structures with p42/nmc-type space groups. The results indicate that the reduction of oxygen partial pressure during sintering and application of Sc-containing electrolyte material are successful strategies to hinder or even avoid reactivity.
URI:	https://digitalcollection.zhaw.ch/handle/11475/2190
Fulltext version:	Published version
License (according to publishing contract):	Licence according to publishing contract
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP) Institute of Materials and Process Engineering (IMPE)
Appears in collections:	Publikationen School of Engineering

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Burnat, D. A., Heel, A., Holzer, L., Otal, E. H., Kata, D., & Graule, T. J. (2012). On the chemical interaction of nanoscale lanthanum doped strontium titanates with common scandium and yttrium stabilized electrolyte materials. International Journal of Hydrogen Energy, 37(23), 18326–18341. https://doi.org/10.1016/j.ijhydene.2012.09.022

Burnat, D.A. et al. (2012) ‘On the chemical interaction of nanoscale lanthanum doped strontium titanates with common scandium and yttrium stabilized electrolyte materials’, International Journal of Hydrogen Energy, 37(23), pp. 18326–18341. Available at: https://doi.org/10.1016/j.ijhydene.2012.09.022.

D. A. Burnat, A. Heel, L. Holzer, E. H. Otal, D. Kata, and T. J. Graule, “On the chemical interaction of nanoscale lanthanum doped strontium titanates with common scandium and yttrium stabilized electrolyte materials,” International Journal of Hydrogen Energy, vol. 37, no. 23, pp. 18326–18341, 2012, doi: 10.1016/j.ijhydene.2012.09.022.

BURNAT, Dariusz Artur, Andre HEEL, Lorenz HOLZER, Eugenio H. OTAL, Dariusz KATA und Thomas J. GRAULE, 2012. On the chemical interaction of nanoscale lanthanum doped strontium titanates with common scandium and yttrium stabilized electrolyte materials. International Journal of Hydrogen Energy. 2012. Bd. 37, Nr. 23, S. 18326–18341. DOI 10.1016/j.ijhydene.2012.09.022

Burnat, Dariusz Artur, Andre Heel, Lorenz Holzer, Eugenio H. Otal, Dariusz Kata, and Thomas J. Graule. 2012. “On the Chemical Interaction of Nanoscale Lanthanum Doped Strontium Titanates with Common Scandium and Yttrium Stabilized Electrolyte Materials.” International Journal of Hydrogen Energy 37 (23): 18326–41. https://doi.org/10.1016/j.ijhydene.2012.09.022.

Burnat, Dariusz Artur, et al. “On the Chemical Interaction of Nanoscale Lanthanum Doped Strontium Titanates with Common Scandium and Yttrium Stabilized Electrolyte Materials.” International Journal of Hydrogen Energy, vol. 37, no. 23, 2012, pp. 18326–41, https://doi.org/10.1016/j.ijhydene.2012.09.022.