Interaction between water and ceria-zirconia-yttria solid solutions

N. Sakai; K. Yamaji; Y. P. Xiong; H. Kishimoto; T. Horita; H. Yokokawa

doi:10.1007/s10832-004-5175-y

Interaction between water and ceria-zirconia-yttria solid solutions

N. Sakai^*
, K. Yamaji
, Y. P. Xiong
, H. Kishimoto
, T. Horita
, H. Yokokawa

^*Corresponding author for this work

National Institute of Advanced Industrial Science and Technology

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

29 Scopus citations

Abstract

We have investigated the water solubility, oxygen isotope diffusivity, and oxygen surface exchange coefficient in a humid atmosphere of the system {(CeO₂) _x (ZrO₂)_1-x } _0.8(YO_1.5)_0.2 (x = 0-1) by using isotope exchange and secondary ion mass spectrometry (SIMS). The deuterium ion ( ²D^-) was detected from the {(CeO₂) _x (ZrO₂)_1-x }_0.8(YO_1.5)_0.2 polycrystals which were annealed in D₂O containing atmosphere. The solubility of deuterium in the polycrystals increased with the cerium content (x). The oxygen exchange rate constant (α) in air at T = 973 K shows a maximum at x = 0.2-0.3, which can be correlated to the compositional dependence of electronic conductivity of {(CeO₂) _x (ZrO ₂)_1-x }_0.8(YO_1.5)_0.2. The effect of water on the surface exchange rate constant was more significantly observed for the samples with higher content of cerium x > 0.6.

Original language	English
Pages (from-to)	677-682
Number of pages	6
Journal	Journal of Electroceramics
Volume	13
Issue number	1-3
DOIs	https://doi.org/10.1007/s10832-004-5175-y
State	Published - Jul 2004
Externally published	Yes

Keywords

Ceria
Diffusion
Surface reaction
Water vapor
Zirconia

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10.1007/s10832-004-5175-y

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title = "Interaction between water and ceria-zirconia-yttria solid solutions",

abstract = "We have investigated the water solubility, oxygen isotope diffusivity, and oxygen surface exchange coefficient in a humid atmosphere of the system \{(CeO2) x (ZrO2)1-x \} 0.8(YO1.5)0.2 (x = 0-1) by using isotope exchange and secondary ion mass spectrometry (SIMS). The deuterium ion ( 2D-) was detected from the \{(CeO2) x (ZrO2)1-x \}0.8(YO1.5)0.2 polycrystals which were annealed in D2O containing atmosphere. The solubility of deuterium in the polycrystals increased with the cerium content (x). The oxygen exchange rate constant (α) in air at T = 973 K shows a maximum at x = 0.2-0.3, which can be correlated to the compositional dependence of electronic conductivity of \{(CeO2) x (ZrO 2)1-x \}0.8(YO1.5)0.2. The effect of water on the surface exchange rate constant was more significantly observed for the samples with higher content of cerium x > 0.6.",

keywords = "Ceria, Diffusion, Surface reaction, Water vapor, Zirconia",

author = "N. Sakai and K. Yamaji and Xiong, \{Y. P.\} and H. Kishimoto and T. Horita and H. Yokokawa",

year = "2004",

month = jul,

doi = "10.1007/s10832-004-5175-y",

language = "英语",

volume = "13",

pages = "677--682",

journal = "Journal of Electroceramics",

issn = "1385-3449",

publisher = "Springer Netherlands",

number = "1-3",

}

TY - JOUR

T1 - Interaction between water and ceria-zirconia-yttria solid solutions

AU - Sakai, N.

AU - Yamaji, K.

AU - Xiong, Y. P.

AU - Kishimoto, H.

AU - Horita, T.

AU - Yokokawa, H.

PY - 2004/7

Y1 - 2004/7

N2 - We have investigated the water solubility, oxygen isotope diffusivity, and oxygen surface exchange coefficient in a humid atmosphere of the system {(CeO2) x (ZrO2)1-x } 0.8(YO1.5)0.2 (x = 0-1) by using isotope exchange and secondary ion mass spectrometry (SIMS). The deuterium ion ( 2D-) was detected from the {(CeO2) x (ZrO2)1-x }0.8(YO1.5)0.2 polycrystals which were annealed in D2O containing atmosphere. The solubility of deuterium in the polycrystals increased with the cerium content (x). The oxygen exchange rate constant (α) in air at T = 973 K shows a maximum at x = 0.2-0.3, which can be correlated to the compositional dependence of electronic conductivity of {(CeO2) x (ZrO 2)1-x }0.8(YO1.5)0.2. The effect of water on the surface exchange rate constant was more significantly observed for the samples with higher content of cerium x > 0.6.

AB - We have investigated the water solubility, oxygen isotope diffusivity, and oxygen surface exchange coefficient in a humid atmosphere of the system {(CeO2) x (ZrO2)1-x } 0.8(YO1.5)0.2 (x = 0-1) by using isotope exchange and secondary ion mass spectrometry (SIMS). The deuterium ion ( 2D-) was detected from the {(CeO2) x (ZrO2)1-x }0.8(YO1.5)0.2 polycrystals which were annealed in D2O containing atmosphere. The solubility of deuterium in the polycrystals increased with the cerium content (x). The oxygen exchange rate constant (α) in air at T = 973 K shows a maximum at x = 0.2-0.3, which can be correlated to the compositional dependence of electronic conductivity of {(CeO2) x (ZrO 2)1-x }0.8(YO1.5)0.2. The effect of water on the surface exchange rate constant was more significantly observed for the samples with higher content of cerium x > 0.6.

KW - Ceria

KW - Diffusion

KW - Surface reaction

KW - Water vapor

KW - Zirconia

UR - https://www.scopus.com/pages/publications/10044278461

U2 - 10.1007/s10832-004-5175-y

DO - 10.1007/s10832-004-5175-y

M3 - 文章

AN - SCOPUS:10044278461

SN - 1385-3449

VL - 13

SP - 677

EP - 682

JO - Journal of Electroceramics

JF - Journal of Electroceramics

IS - 1-3

ER -

Interaction between water and ceria-zirconia-yttria solid solutions

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Keywords

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