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Title: Experimental and computational investigations on the SO2 poisoning of (La0.8Sr0.2)0.95MnO3 cathode materials

Journal Article · · Advanced Powder Materials

To study the formation of detrimental phases under the sulfur gas impurity to the long-term degradation in the LSM cathode material, the classic cathode material, (La0.8Sr0.2)0.95MnO3 (LSM), was prepared, sintered, and annealed at 800, 900, and 1000°C in the sulfur-containing atmospheres, respectively. Through X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), and Transmission electron microscopy (TEM) techniques, as well as the CALPHAD (Computer Coupling of Phase Diagrams and Thermochemistry) methodology, the secondary phases, especially the detrimental ones, under different conditions were predicted and experimentally verified correspondingly. Furthermore, sulfur poisoning results indicate that the accelerated tests might have degradation mechanisms different from actual operation conditions. More importantly, comprehensive comparisons among various impurity-containing conditions were also made to recommend better operation parameters.

Research Organization:
Worcester Polytechnic Institute, MA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FE0031652
OSTI ID:
2006772
Journal Information:
Advanced Powder Materials, Vol. 2, Issue 1; ISSN 2772-834X
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (33)

Sulfur Poisoning on La0.6Sr0.4Co0.2Fe0.8O3 Cathode for SOFCs journal January 2011
Investigation of double perovskites Sr2SmNbO6 and X2CoNbO6 (X=Sr,Ba) with SCAN functional and plus U correction journal April 2022
Mechanism of SO2 Poisoning on the Electrochemical Activity of LSCF and LSM Electrodes journal June 2015
Influence of Water Vapor on Sulfur Distribution Within La0.6Sr0.4Co0.2Fe0.8O3 Cathode journal April 2013
Thermodynamic and Experimental Evaluation of La1−xSrxMnO3±δ Cathode in Presence of Cr-Containing Humidified Air journal October 2018
Numerical simulation of kinetic demixing and decomposition in a LaCoO3-δ oxygen membrane under an oxygen potential gradient journal February 2018
Atomic-resolution analysis of degradation phenomena in SOFCS: A case study of SO2 poisoning in LSM cathodes journal July 2016
Achieving fast oxygen diffusion in perovskites by cation ordering journal February 2005
Thermodynamics of the oxidation of rare earth oxysulfides at high temperatures journal September 1984
Sulfur Poisoning of LSCF Cathode in Single Step Co-fired SOFC journal June 2015
Influence of SO 2 on the Long-Term Durability of SOFC Cathodes journal April 2011
Sulfur as Pollutant Species on the Cathode Side of a SOFC System conference January 2009
Thermodynamic prediction of the effect of CO2 to the stability of (La0.8Sr0.2)0.98MnO3±δ system journal June 2016
Thermodynamics of the Ca-S-O, Mg-S-O, and La-S-O systems at high temperatures journal June 1985
Interdiffusion between gadolinia doped ceria and yttria stabilized zirconia in solid oxide fuel cells: Experimental investigation and kinetic modeling journal November 2019
Solid oxide fuel cells (SOFCs): a review of an environmentally clean and efficient source of energy journal October 2002
Degradation Mechanism of SOFC Cathodes under CrO3 and SO2 Impurity Exposures journal June 2013
Evaluation of Sulfur Dioxide Poisoning for LSCF Cathodes journal February 2013
Sulfur Poisoning of SOFC Cathodes journal January 2009
The origin of the phase separation in (La0.8Sr0.2)0.95(CrxFe1-x)O3±δ perovskites for oxygen transport membranes applications journal June 2020
Sulphur poisoning of the SOFC cathode material La0.6Sr0.4CoO3-δ journal May 2013
Phase equilibria and oxidation mechanisms in the LA-S-O system journal December 1982
Oxygen isotope exchange with a dense La0.6Sr0.4CoO3−δ electrode on a Ce0.9Ca0.1O1.9 electrolyte journal June 1999
Thermodynamic stability maps for the La0.6Sr0.4Co0.2Fe0.8O3±δ–CO2–O2 system for application in solid oxide fuel cells journal December 2016
Recent advances in Perovskite-type materials for solid oxide fuel cell cathodes journal March 2001
Poisoning effect of SO2 on the oxygen permeation behavior of La0.6Sr0.4Co0.2Fe0.8O3−δ perovskite hollow fiber membranes journal April 2014
Effect of strontium concentration on sulfur poisoning of LSCF cathodes journal October 2012
Computational engineering of the oxygen electrode-electrolyte interface in solid oxide fuel cells journal July 2021
General considerations on degradation of Solid Oxide Fuel Cell anodes and cathodes due to impurities in gases journal September 2011
A machine learning accelerated distributed task management system (Malac-Distmas) and its application in high-throughput CALPHAD computation aiming at efficient alloy design journal January 2022
Interrelation between Sulfur Poisoning and Performance Degradation of LSCF Cathode for SOFCs journal January 2016
Effect of SO2 on the Performance of LSCF Cathode journal February 2014
A review of sulfur poisoning of solid oxide fuel cell cathode materials for solid oxide fuel cells journal December 2020