The thermomechanical stability of micro-solid oxide fuel cells fabricated on anodized aluminum oxide membranes
- The thermomechanical stability of micro-solid oxide fuel cells fabricated on anodized aluminum oxide membranes
- 권창우; 이재일; 김기범; 이해원; 이종호; 손지원
- micro-SOFC; freestanding membrane; anodized aluminum oxide; Pt electrode; thermomechanical stability; Micro-solid oxide fuel cell; Platinum electrode
- Issue Date
- Journal of power sources
- VOL 210, 178-183
- 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.
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