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Development of nanostructured La0.8Sr0.2MnO3−Delta-Er0.4Bi1.6O3 cathodes via an infiltration process with different polymeric agents for intermediate temperature solid oxide fuel cells

Title
Development of nanostructured La0.8Sr0.2MnO3−Delta-Er0.4Bi1.6O3 cathodes via an infiltration process with different polymeric agents for intermediate temperature solid oxide fuel cells
Authors
Park, J.W.[Park, Jin Wan]Joh, D.W.[Joh, Dong Woo]Yun, B.-H.[Yun, Byung Hyun]Samdani, K.J.[Samdani, Kunda J.]Lee, K.T.[Lee, Kang Taek]
DGIST Authors
Park, J.W.[Park, Jin Wan]; Joh, D.W.[Joh, Dong Woo]; Yun, B.-H.[Yun, Byung Hyun]; Samdani, K.J.[Samdani, Kunda J.]; Lee, K.T.[Lee, Kang Taek]
Issue Date
2017
Citation
International Journal of Hydrogen Energy, 42(9), 6332-6337
Type
Article
Article Type
Article in Press
Keywords
Amino AcidsBismuth OxideBismuth OxidesCathodeCathodesCharge TransferCharge Transfer ProcessElectrochemical Impedance AnalysisElectrodesElectrolytic ReductionErbiumFuel CellsInfiltrationInfiltration TechniquesIntermediate Temperature Solid Oxide Fuel CellLanthanum OxidesLanthanum Strontium ManganiteManganese OxideNano-StructuresNanostructureOxygen Reduction ReactionPerformance EnhancementsPolymersScaffolds (Biology)Solid Oxide Fuel Cells (SOFC)Synthesis (Chemical)
ISSN
0360-3199
Abstract
Dual-phase composite cathodes consisting of La0.8Sr0.2MnO3−δ (LSM) nanoparticles on the Er0.4Bi1.6O3 (ESB) scaffold have been synthesized via an infiltration technique using different polymeric agents for intermediate temperature solid oxide fuel cell (IT-SOFC) applications. It was found that the LSM infiltration with Triton-X yielded well-distributed LSM nano-catalysts (<50 nm) on the ESB surface, while the use of glycine resulted in the highly agglomerated ‘layer-like’ structure. The nanostructured LSM-ESB fabricated with Triton-X exhibited low electrode resistance of 0.23 Ω-cm2 at 650 °C, which is ∼60% lower than that of the conventional LSM-ESB (0.56 Ω-cm2). Electrochemical impedance analysis revealed that this performance enhancement is primarily attributed to the enhanced charge transfer process of oxygen reduction reactions with homogeneously increased reaction sites in the characteristic nanostructure. © 2016 Hydrogen Energy Publications LLC
URI
http://hdl.handle.net/20.500.11750/2066
DOI
10.1016/j.ijhydene.2016.11.175
Publisher
Elsevier Ltd
Related Researcher
  • Author Lee, Kang Taek Advanced Energy Conversion and Storage Lab(AECSL)
  • Research Interests
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Collection:
Energy Science and EngineeringAECSL(Advanced Energy Conversion and Storage Lab)1. Journal Articles
Energy Science and EngineeringETC1. Journal Articles


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