Formation of yttria-stabilized zirconia nanotubes by atomic layer deposition toward efficient solid electrolytes

Title
Formation of yttria-stabilized zirconia nanotubes by atomic layer deposition toward efficient solid electrolytes
Authors
김주선김은수김현철배창득이대희문주호신현정
Keywords
Atomic layer deposition; YSZ nanotubes; Solid oxide electrolytes
Issue Date
2017-12
Publisher
Nano Convergence
Citation
VOL 4, NO 31-7
Abstract
We describe a fabrication strategy for preparing yttria-stabilized zirconia nanotube (YSZ-NT) arrays embedded in porous alumina membranes by means of template-directed atomic layer deposition (ALD) technique. The individual YSZ-NTs have a high aspect-ratio of well over 120, about ~ 110 nm in diameter, and ~ 14 μm in length. Interfacing the tube arrays with porous Pt was also introduced on the basis of partial etching technique in order to construct Pt/YSZNTs/Pt membrane electrode assembly (MEA) structures. The resulting YSZ-NTs MEAs show a 7 mm in diameter with a roughness factor of ~ 2. Area specific resistance was measured up to 1.84 Ω cm2 at 400 °C using H2 as fuel.
URI
http://pubs.kist.re.kr/handle/201004/67376
ISSN
2196-5404
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KIST Publication > Article
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