Cited 15 time in webofscience Cited 17 time in scopus

Role of nanostructures on SOFC performance at reduced temperatures

Title
Role of nanostructures on SOFC performance at reduced temperatures
Authors
Lee, KT[Lee, Kang Taek]Wachsman, ED[Wachsman, Eric D.]
DGIST Authors
Lee, KT[Lee, Kang Taek]
Issue Date
2014-09
Citation
MRS Bulletin, 39(9), 783-791
Type
Article
Article Type
Article; Review
Keywords
CeramicCompositeComposite MaterialsEnergy GenerationEnergy GenerationsIon-Solid InteractionIon-Solid InteractionsIonic ConductorNano-ScaleNano-StructuresNano ScaleNanostructure
ISSN
0883-7694
Abstract
Solid-oxide fuel cells (SOFCs) are an energy conversion technology with unique potential to have the highest energy conversion efficiency with the least environmental impact, as well as broad fuel flexibility from renewable to conventional fuels. Lowering the SOFC operating temperature will further lower system and operational costs, increase long-term durability, and allow more rapid start-up, providing feasibility for load following and transportation applications. Unfortunately, at reduced temperatures, the thermally activated nature of ionic conduction and electrochemical reactions increase polarization resistances, thus decreasing cell and system performance. However, lower operating temperatures also create the opportunity to employ nanostructured materials with higher surface area-to-volume ratios and greater interphase and interfacial regions, which can greatly enhance electrochemical performance. Here, we review recent progress in the development of various nanostructured electrodes and electrolytes and discuss their effects on the enhancement of the electrocatalytic activity of oxygen reduction and fuel oxidation, as well as oxygen-ion conduction, in order to achieve high-performance low-temperature SOFCs. © Materials Research Society 2014.
URI
http://hdl.handle.net/20.500.11750/3043
DOI
10.1557/mrs.2014.193
Publisher
Cambridge University Press
Related Researcher
  • Author Lee, Kang Taek Advanced Energy Conversion and Storage Lab(AECSL)
  • Research Interests
Files:
There are no files associated with this item.
Collection:
Energy Science and EngineeringAECSL(Advanced Energy Conversion and Storage Lab)1. Journal Articles


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