Effect of ordered arrangement of Ce and Zr ion on oxygen storage capacity of Ceria-Zirconia solid solution

被引：24

作者：

Suda, A ^{[1
]}

Ukyo, Y ^{[1
]}

Yamamura, K ^{[1
]}

Sobukawa, H ^{[1
]}

Sasaki, T ^{[1
]}

Sugiura, M ^{[1
]}

Tanabe, T ^{[1
]}

Nagai, Y ^{[1
]}

机构：

[1] Toyota Cent Res & Dev Labs Inc, Appl Catalysis Lab, Aichi 4801192, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2004年 / 112卷 / 1311期

关键词：

CeO2-ZrO2 solid solution; oxygen storage capacity (OSC); reduction; oxidation; specific surface area;

D O I：

10.2109/jcersj.112.586

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The CeO2-ZrO2 solid solution is the most important oxygen storage/release material for use in automobile catalysts. In particular, the ceria-zirconia solid solution with a pyrochlore structure exhibits the highest oxygen storage capacity (OSC). In this study, CeO2-ZrO2 solid solutions containing Y2O3 were synthesized and their OSCs were measured to clarify the influence of an ordered arrangement of Cc and Zr ions on the OSC. As a result of this study, it is concluded that an ordered arrangement of Cc and Zr ions markedly improves the OSC of CeO2-ZrO2 solid solutions.

引用

页码：586 / 589

页数：4

共 12 条

[1] Crystal structure of metastable K-CeZrO4 phase possessing an ordered arrangement of Ce and Zr ions [J].

Kishimoto, H ;

Omata, T ;

Otsuka-Yao-Matsuo, S ;

Ueda, K ;

Hosono, H ;

Kawazoe, H .

JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 312 (1-2) :94-103

[2] X-ray absorption fine structure analysis of local structure of CeO2-ZrO2 mixed oxides with the same composition ratio (Ce/Zr=1) [J].

Nagai, Y ;

Yamamoto, T ;

Tanaka, T ;

Yoshida, S ;

Nonaka, T ;

Okamoto, T ;

Suda, A ;

Sugiura, M .

CATALYSIS TODAY, 2002, 74 (3-4) :225-234

[3] Oxygen release behavior of CeZrO4 powders and appearance of new compounds κ and t [J].

Otsuka-Yao-Matsuo, S ;

Omata, T ;

Izu, N ;

Kishimoto, H .

JOURNAL OF SOLID STATE CHEMISTRY, 1998, 138 (01) :47-54

[4] Oxygen evolution properties of CeO2-ZrO2 powders as automotive exhaust sub-catalysts and the phase diagrams [J].

OtsukaYao, S ;

Morikawa, H ;

Izu, N ;

Okuda, K .

JOURNAL OF THE JAPAN INSTITUTE OF METALS, 1995, 59 (12) :1237-1246

[5] Oxygen absorption behavior of Ce2Zr2O7+x and formation of Ce2Zr2O7.5 [J].

Sasaki, T ;

Ukyo, Y ;

Suda, A ;

Sugiura, M ;

Kuroda, K ;

Arai, S ;

Saka, H .

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2003, 111 (06) :382-385

[6] Flaming oxidation of reduced CeO2-ZrO2 solid solution in the near-room-temperature range [J].

Sasaki, T ;

Ukyo, Y ;

Suda, A ;

Sugiura, M ;

Kuroda, K ;

Saka, H .

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2002, 110 (10) :899-903

[7] Effect of specific surface area of ceria-zirconia solid solutions on their oxygen storage capacity [J].

Suda, A ;

Yamamura, K ;

Ukyo, Y ;

Sasaki, T ;

Sobukawa, H ;

Tanabe, T ;

Nagai, Y ;

Sugiura, M .

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2004, 112 (1311) :581-585

[8] Improvement of oxygen storage capacity of CeO2-ZrO2 solid solution by heat treatment in reducing atmosphere [J].

Suda, A ;

Ukyo, Y ;

Sobukawa, H ;

Sugiura, M .

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2002, 110 (02) :126-130

[9] Store and release of oxygen of ceria-zirconia solid solution synthesized by solid phase reaction at near room temperature [J].

Suda, A ;

Sobukawa, H ;

Suzuki, T ;

Kandori, T ;

Ukyo, Y ;

Sugiura, M .

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2001, 109 (03) :177-180

[10] Oxygen storage materials for automotive catalysts: ceria-zirconia solid solutions [J].

Sugiura, M .

CATALYSIS SURVEYS FROM ASIA, 2003, 7 (01) :77-87

← 1 2 →