Dynamic Changes in LSM Nanoparticles on YSZ: A Model System for Non-stationary SOFC Cathode Behavior

Woo, L Y; Glass, R S; Gorte, R J; Orme, C A; Nelson, A J

doi:10.1149/1.3095516

Title: Dynamic Changes in LSM Nanoparticles on YSZ: A Model System for Non-stationary SOFC Cathode Behavior

Journal Article · Mon Jan 05 00:00:00 EST 2009 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.3095516· OSTI ID:951667

Woo, L Y; Glass, R S; Gorte, R J; Orme, C A; Nelson, A J

The interaction between nanoparticles of strontium-doped lanthanum manganite (LSM) and single crystal yttria-stabilized zirconia (YSZ) was investigated using atomic force microscopy (AFM), x-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM)/energy-dispersive x-ray spectroscopy (EDX). Nanoparticles of LSM were deposited directly onto single crystal YSZ substrates (100) using an ultrasonic spray nozzle. As samples were annealed from 850 C to 1250 C, nanoparticles gradually decreased in height and eventually disappeared completely. Subsequent reduction in H{sub 2}/H{sub 2}O at 700 C resulted in the reappearance of nanoparticles. Studies were carried out on identical regions of the sample allowing the same nanoparticles to be characterized at different temperatures. Morphological changes indicate the formation of a thin layer of LSM, and XPS results support the observation by indicating an increase in signal from the La and Sr and a decrease in signal from the Y and Zr with increasing temperature. SEM/EDX was used to verify that the nanoparticles in the reduced sample contained La. The changes in the LSM/YSZ morphology may be important in explaining the non-stationary behavior observed in operating fuel cells. The thin layer of LSM initially results in poor cathode performance; reducing conditions then lead to film disruptions, indicating nano/microporosity, that increase oxygen ion diffusion and performance.

View Journal Article

Cite

Export

Save

Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: W-7405-ENG-48

OSTI ID:: 951667

Report Number(s):: LLNL-JRNL-409651; JESOAN; TRN: US200913%%89

Journal Information:: Journal of the Electrochemical Society, Vol. 156, Issue 5; ISSN 0013-4651

Country of Publication:: United States

Language:: English

References (28)

Characterization of LSM-YSZ Composites Prepared by Impregnation Methods Huang, Yingyi; Vohs, John M.; Gorte, Raymond J. Journal of The Electrochemical Society, Vol. 152, Issue 7 https://doi.org/10.1149/1.1926669	journal	January 2005
Surface diffusion on a stepped surface Natori, Akiko; Godby, Rex W. Physical Review B, Vol. 47, Issue 23 https://doi.org/10.1103/PhysRevB.47.15816	journal	June 1993
La2Zr2O7 formation and oxygen reduction kinetics of the La0.85Sr0.15MnyO3, O2(g)\|YSZ system Mitterdorfer, A. Solid State Ionics, Vol. 111, Issue 3-4 https://doi.org/10.1016/S0167-2738(98)00195-7	journal	September 1998
Experimental study of surface diffusion rate enhancement along steps: CO on Pt(111) Ma, Jianwei; Xiao, Xudong; Loy, M. M. T. Surface Science, Vol. 436, Issue 1-3 https://doi.org/10.1016/S0039-6028(99)00641-X	journal	August 1999
Interface chemistry in LSM–YSZ composite SOFC cathodes Backhausricoult, M. Solid State Ionics, Vol. 177, Issue 19-25 https://doi.org/10.1016/j.ssi.2006.08.011	journal	October 2006
In situ characterization of strontium surface segregation in epitaxial La0.7Sr0.3MnO3 thin films as a function of oxygen partial pressure Fister, Tim T.; Fong, Dillon D.; Eastman, Jeffrey A. Applied Physics Letters, Vol. 93, Issue 15 https://doi.org/10.1063/1.2987731	journal	October 2008
Transition of crystalline orientation of yttria-stabilized zirconia films grown by pulsed laser deposition Zhang, X.; Berdahl, P.; Klini, A. Applied Physics A, Vol. 91, Issue 3 https://doi.org/10.1007/s00339-008-4475-5	journal	April 2008
Structure, stoichiometry and phase purity of strontium-doped lanthanum manganite powders Millini, R.; Gagliardi, M. F.; Piro, G. Journal of Materials Science, Vol. 29, Issue 15 https://doi.org/10.1007/BF00355971	journal	August 1994
In-situ study of operating SOFC LSM/YSZ cathodes under polarization by photoelectron microscopy Backhaus-Ricoult, M.; Adib, K.; St. Clair, T. Solid State Ionics, Vol. 179, Issue 21-26 https://doi.org/10.1016/j.ssi.2008.02.033	journal	September 2008
Performance and Activation Behavior of Surface-Doped Thin-Film La[sub 0.8]Sr[sub 0.2]MnO[sub 3−δ] Cathodes Vance, Andrew A.; McIntosh, Steven Journal of The Electrochemical Society, Vol. 155, Issue 1 https://doi.org/10.1149/1.2799061	journal	January 2008
Oxidation-reduction behavior of undoped and Sr-doped LaMnO3 nonstoichiometry and defect structure Kuo, J. H.; Anderson, H. U.; Sparlin, D. M. Journal of Solid State Chemistry, Vol. 83, Issue 1 https://doi.org/10.1016/0022-4596(89)90053-4	journal	November 1989
Atom-Resolved Imaging of Dynamic Shape Changes in Supported Copper Nanocrystals Hansen, P. L. Science, Vol. 295, Issue 5562 https://doi.org/10.1126/science.1069325	journal	March 2002
Diffusion controlled oxygen transport and stability at the perovskite/electrolyte interface Kuznecov, M. Solid State Ionics, Vol. 157, Issue 1-4 https://doi.org/10.1016/S0167-2738(02)00235-7	journal	February 2003
Factors Governing Oxygen Reduction in Solid Oxide Fuel Cell Cathodes ^† Adler, Stuart B. Chemical Reviews, Vol. 104, Issue 10 https://doi.org/10.1021/cr020724o	journal	October 2004
X-ray photoelectron spectroscopy of La0.5Sr0.5MnO3 Wu, Qi-Hui; Liu, Meilin; Jaegermann, W. Materials Letters, Vol. 59, Issue 12 https://doi.org/10.1016/j.matlet.2004.12.036	journal	May 2005
SOFC Cathodes Prepared by Infiltration with Various LSM Precursors Huang, Y.; Vohs, J. M.; Gorte, R. J. Electrochemical and Solid-State Letters, Vol. 9, Issue 5, p. A237-A240 https://doi.org/10.1149/1.2183867	journal	January 2006
Effect of oxygen stoichiometry on properties of La0.815Sr0.185MnO3+d Bukowski, Z.; Dabrowski, B.; Mais, J. Journal of Applied Physics, Vol. 87, Issue 9 https://doi.org/10.1063/1.373238	journal	May 2000
Understanding Materials Compatibility Yokokawa, Harumi Annual Review of Materials Research, Vol. 33, Issue 1 https://doi.org/10.1146/annurev.matsci.33.022802.093856	journal	August 2003
Cyclic voltammetry of (La,Sr)MnO3 electrode on YSZ substrate Chen, X. Solid State Ionics, Vol. 164, Issue 1-2 https://doi.org/10.1016/j.ssi.2003.08.006	journal	October 2003
Effects of oxygen pressure on lattice parameter, orientation, surface morphology and deposition rate of (Ba0.02Sr0.98)TiO3 thin films grown on MgO substrate by pulsed laser deposition Thin Solid Films, Vol. 485, Issue 1-2 https://doi.org/10.1016/j.tsf.2005.03.055	journal	August 2005
Identification of O2 reduction processes at yttria stabilized zirconia\|doped lanthanum manganite interface Chen, X. J.; Khor, K. A.; Chan, S. H. Journal of Power Sources, Vol. 123, Issue 1 https://doi.org/10.1016/S0378-7753(03)00436-1	journal	September 2003
Epitaxial variant structures of the perovskite manganites with the high tunnel magnetoresistance Gorbenko, O. Yu.; Kaul, A. R.; Kamenev, A. A. Journal of Crystal Growth, Vol. 275, Issue 1-2 https://doi.org/10.1016/j.jcrysgro.2004.11.357	journal	February 2005
Fidgety particles on surfaces: how do they jump, walk, group, and settle in virgin areas? Naumovets, A. G.; Zhang, Zhenyu Surface Science, Vol. 500, Issue 1-3 https://doi.org/10.1016/S0039-6028(01)01539-4	journal	March 2002
Diffusion on stepped surfaces III. Enhanced diffusion along step edges Uebing, C.; Gomer, R. Surface Science, Vol. 317, Issue 1-2 https://doi.org/10.1016/0039-6028(94)90263-1	journal	September 1994
Activation, microstructure, and polarization of solid oxide fuel cell cathodes Jiang, San Ping Journal of Solid State Electrochemistry, Vol. 11, Issue 1 https://doi.org/10.1007/s10008-005-0076-9	journal	November 2005
Characterization of AFM tips using nanografting Xu, Song; Amro, Nabil A.; Liu, Gang-Yu Applied Surface Science, Vol. 175-176 https://doi.org/10.1016/S0169-4332(01)00116-7	journal	May 2001
SIMS artifacts in the near surface depth profiling of oxygen conducting ceramics Fearn, Sarah; Rossiny, Jeremy; Kilner, John Solid State Ionics, Vol. 179, Issue 21-26 https://doi.org/10.1016/j.ssi.2008.01.020	journal	September 2008
MgO films grown on yttria-stabilized zirconia by molecular beam epitaxy Maksimov, O.; Fisher, P.; Skowronski, M. Journal of Crystal Growth, Vol. 310, Issue 11 https://doi.org/10.1016/j.jcrysgro.2008.02.013	journal	May 2008

Similar Records

Fabrication of gradient porous LSM cathode by optimizing deposition parameters in ultrasonic spray pyrolysis

Journal Article · Tue Oct 07 00:00:00 EDT 2008 · Materials Science and Engineering. B. Solid-State Materials for Advanced Technology, 153(1-3):1-9 · OSTI ID:951667

Hamedani, Hoda A; Dahmen, Klaus-Hermann; Li, Dongsheng; +3 more

Operating Stresses and Their Effects on Degradation of LSM-Based SOFC Cathodes

Other · Sun Aug 01 00:00:00 EDT 2021 · OSTI ID:951667

Deng, Chenxin

Nanoscale Analysis of LSM/YSZ Interfaces within Composite Cathodes for Commercial Solid Oxide Fuel Cells

Journal Article · Fri Jul 09 00:00:00 EDT 2021 · ECS Transactions · OSTI ID:951667

Picard, Yoosuf N.; Poplawsky, Jonathan D.; Lee, Shiwoo; +1 more

Related Subjects

36 MATERIALS SCIENCE
29 ENERGY PLANNING
POLICY AND ECONOMY
ATOMIC FORCE MICROSCOPY
CATHODES
DIFFUSION
FUEL CELLS
LANTHANUM
MONOCRYSTALS
MORPHOLOGICAL CHANGES
MORPHOLOGY
OXYGEN IONS
PERFORMANCE
SCANNING ELECTRON MICROSCOPY
SOLID OXIDE FUEL CELLS
SUBSTRATES
ULTRASONIC WAVES
X-RAY PHOTOELECTRON SPECTROSCOPY
X-RAY SPECTROSCOPY

Title: Dynamic Changes in LSM Nanoparticles on YSZ: A Model System for Non-stationary SOFC Cathode Behavior

Citation Formats

References (28)

Similar Records

Related Subjects