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

Eunsoo Kim; Hyunchul Kim; Changdeuck Bae; Daehee Lee; Jooho Moon; Joosun Kim; Hyunjung Shin

doi:10.1186/s40580-017-0127-9

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

Eunsoo Kim, Hyunchul Kim, Changdeuck Bae, Daehee Lee, Jooho Moon, Joosun Kim, Hyunjung Shin

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

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/YSZ-NTs/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.

Original language	English
Article number	31
Journal	Nano Convergence
Volume	4
Issue number	1
DOIs	https://doi.org/10.1186/s40580-017-0127-9
Publication status	Published - 2017 Dec

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Publisher Copyright:
© The Author(s) 2017.

All Science Journal Classification (ASJC) codes

Materials Science(all)
Engineering(all)

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10.1186/s40580-017-0127-9

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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/YSZ-NTs/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.",

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AU - Kim, Eunsoo

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AU - Bae, Changdeuck

AU - Lee, Daehee

AU - Moon, Jooho

AU - Kim, Joosun

AU - Shin, Hyunjung

PY - 2017/12

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AB - 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/YSZ-NTs/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.

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

Abstract

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