The thermomechanical stability of micro-solid oxide fuel cells fabricated on anodized aluminum oxide membranes

Title
The thermomechanical stability of micro-solid oxide fuel cells fabricated on anodized aluminum oxide membranes
Authors
권창우이재일김기범이해원이종호손지원
Keywords
micro-SOFC; freestanding membrane; anodized aluminum oxide; Pt electrode; thermomechanical stability; Micro-solid oxide fuel cell; Platinum electrode
Issue Date
2012-07
Publisher
Journal of power sources
Citation
VOL 210, 178-183
Abstract
The thermomechanical stability of micro-solid oxide fuel cells (micro-SOFCs) fabricated on an anodized aluminum oxide (AAO) membrane template is investigated. The full structure consists of the following layers: AAO membrane (600 nm)/Pt anode/YSZ electrolyte (900 nm)/porous Pt cathode. The utilization of a 600-nm-thick AAO membrane significantly improves the thermomechanical stability due to its wellknown honeycomb-shaped nanopore structure. Moreover, the Pt anode layer deposited in between the AAO membrane and the YSZ electrolyte preserves its integrity in terms of maintaining the triple-phase boundary (TPB) and electrical conductivity during high-temperature operation. Both of these results guarantee thermomechanical stability of the micro-SOFC and extend the cell lifetime, which is one of the most critical issues in the fabrication of freestanding membrane-type micro-SOFCs.
URI
http://pubs.kist.re.kr/handle/201004/42202
ISSN
03787753
Appears in Collections:
KIST Publication > Article
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