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Kim, Guntae
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Research Interests
  • Solid Oxide Fuel Cells (SOFCs)& SOE, PEMFC, metal-air batteries, Metal-CO2 system, Catalyst for DRM

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Decreasing interfacial losses with catalysts in La0.9Ca0.1FeO3-δ membranes for syngas production

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Title
Decreasing interfacial losses with catalysts in La0.9Ca0.1FeO3-δ membranes for syngas production
Author
Yu, Anthony S.Kim, JunyoungOh, Tae-SikKim, GuntaeGorte, Raymond J.Vohs, John M.
Issue Date
2014-09
Publisher
ELSEVIER SCIENCE BV
Citation
APPLIED CATALYSIS A-GENERAL, v.486, pp.259 - 265
Abstract
The effect of modification of the surface of a La0.9Ca0.1FeO3 (LCF) membrane by the addition of a porous layer with an infiltrated catalyst on oxygen flux through the membrane in a CO/air gradient was investigated. Membranes with Pt and CeO2 catalysts on the fuel (CO) side and La0.8Sr0.2FeO3 (LSF) on the air-side exhibited oxygen permeation fluxes that were 91, 28, and 5.8 times greater at 873 K, 973 K, and 1073 K, respectively, compared to a membrane with unmodified surfaces. The relative contributions of the bulk (Rb) and surface (Rs) resistances to the total resistance to oxygen ion flow (Rtot) were accessed by measuring the oxygen flux as a function of the membrane thickness. Rs was found to dominate Rtot, demonstrating the importance of the surface processes.
URI
https://scholarworks.unist.ac.kr/handle/201301/9168
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84908612799
DOI
10.1016/j.apcata.2014.08.028
ISSN
0926-860X
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