Characteristics of oxygen reduction on nanocrystalline YSZ

H. Huang; J. H. Shim; C. C. Chao; R. Pornprasertsuk; M. Sugawara; T. M. Gür; F. B. Prinz

doi:10.1149/1.3058597

Characteristics of oxygen reduction on nanocrystalline YSZ

H. Huang, J. H. Shim, C. C. Chao, R. Pornprasertsuk, M. Sugawara, T. M. Gür, F. B. Prinz

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

23 Citations (Scopus)

Abstract

We present a series of experimental results indicating improved oxygen reduction characteristics on nanocrystalline yttria-stabilized zirconia (YSZ) surfaces. We compare (i) cathodic interface impedances on nanocrystalline and microcrystalline YSZ, (ii) oxygen exchange rate on and bulk diffusivity in nano- and single-crystal YSZ, and (iii) bulk and surface conductivities of nano-YSZ. The results collectively indicate that the oxygen reduction/exchange rate is faster on nanocrystalline YSZ than on micro- and single-crystal YSZ, which likely is related to fast oxygen or electronic transport on the surface.

Original language	English
Pages (from-to)	B392-B396
Journal	Journal of the Electrochemical Society
Volume	156
Issue number	3
DOIs	https://doi.org/10.1149/1.3058597
Publication status	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

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abstract = "We present a series of experimental results indicating improved oxygen reduction characteristics on nanocrystalline yttria-stabilized zirconia (YSZ) surfaces. We compare (i) cathodic interface impedances on nanocrystalline and microcrystalline YSZ, (ii) oxygen exchange rate on and bulk diffusivity in nano- and single-crystal YSZ, and (iii) bulk and surface conductivities of nano-YSZ. The results collectively indicate that the oxygen reduction/exchange rate is faster on nanocrystalline YSZ than on micro- and single-crystal YSZ, which likely is related to fast oxygen or electronic transport on the surface.",

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AU - Huang, H.

AU - Shim, J. H.

AU - Chao, C. C.

AU - Pornprasertsuk, R.

AU - Sugawara, M.

AU - Gür, T. M.

AU - Prinz, F. B.

PY - 2009

Y1 - 2009

N2 - We present a series of experimental results indicating improved oxygen reduction characteristics on nanocrystalline yttria-stabilized zirconia (YSZ) surfaces. We compare (i) cathodic interface impedances on nanocrystalline and microcrystalline YSZ, (ii) oxygen exchange rate on and bulk diffusivity in nano- and single-crystal YSZ, and (iii) bulk and surface conductivities of nano-YSZ. The results collectively indicate that the oxygen reduction/exchange rate is faster on nanocrystalline YSZ than on micro- and single-crystal YSZ, which likely is related to fast oxygen or electronic transport on the surface.

AB - We present a series of experimental results indicating improved oxygen reduction characteristics on nanocrystalline yttria-stabilized zirconia (YSZ) surfaces. We compare (i) cathodic interface impedances on nanocrystalline and microcrystalline YSZ, (ii) oxygen exchange rate on and bulk diffusivity in nano- and single-crystal YSZ, and (iii) bulk and surface conductivities of nano-YSZ. The results collectively indicate that the oxygen reduction/exchange rate is faster on nanocrystalline YSZ than on micro- and single-crystal YSZ, which likely is related to fast oxygen or electronic transport on the surface.

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Characteristics of oxygen reduction on nanocrystalline YSZ

Abstract

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