Oxide-ion conductivity in CuxCe1-xO2-δ (0 ≤ x ≤ 0.10)

被引：17

作者：

Gayen, A

Priolkar, KR

Shukla, AK

Ravishankar, N

Hegde, MS ^{[1
]}

机构：

[1] Indian Inst Sci, Solid State & Struct Chem Unit, Bangalore 560012, Karnataka, India

[2] Goa Univ, Dept Phys, Taleigao Plateau 403206, Goa, India

[3] Indian Inst Sci, Mat Res Ctr, Bangalore 560012, Karnataka, India

来源：

MATERIALS RESEARCH BULLETIN | 2005年 / 40卷 / 03期

关键词：

oxides; chemical synthesis; impedance spectroscopy; defects; ionic conductivity;

D O I：

10.1016/j.materresbull.2004.12.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Up to 10 at.% of copper readily substitutes for cerium in ceria. It is found that at oxygen partial pressures between 0.21 atm and 10(-5) atm, CuxCe1-xO2-delta (0 <= x <= 0.10) solid solution behave as an oxide-ion electrolyte. Interestingly, Cu0.10Ce0.90O2-delta exhibits the oxide-ion conductivity of ca. 10(-4) Omega(-1) cm(-1) at 600 degrees C at an oxygen partial pressure of 10-5 atm. (c) 2005 Elsevier Ltd. All rights reserved.

引用

收藏

页码：421 / 431

页数：11

相关论文

共 18 条

[1] Studies on Cu/CeO2:: A new NO reduction catalyst [J].

Bera, P ;

Aruna, ST ;

Patil, KC ;

Hegde, MS .

JOURNAL OF CATALYSIS, 1999, 186 (01) :36-44

[2] Structural investigation of combustion synthesized Cu/CeO2 catalysts by EXAFS and other physical techniques:: Formation of a Ce1-xCuxO2-δ solid solution [J].

Bera, P ;

Priolkar, KR ;

Sarode, PR ;

Hegde, MS ;

Emura, S ;

Kumashiro, R ;

Lalla, NP .

CHEMISTRY OF MATERIALS, 2002, 14 (08) :3591-3601

[3] TRANSPORT-PROPERTIES AND DEFECT STRUCTURE OF NONSTOICHIOMETRIC YTTRIA DOPED CERIA [J].

CALES, B ;

BAUMARD, JF .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1984, 45 (8-9) :929-935

[4] Nonstoichiometry and Electrical Conductivity of Nanocrystalline CeO\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document} $${2 - x} $$ \end{document} [J].

E B Lavik ;

I Kosacki ;

H L Tuller ;

Y-M Chiang ;

J Y Ying .

Journal of Electroceramics, 1997, 1 (1) :7-14

[5]

Dell RM., 1978, SOLID ELECT GEN PRIN, P291

[6] Hydrothermal synthesis and properties of Ce1-xLaxO2-δ solid solutions [J].

Dikmen, S ;

Shuk, P ;

Greenblatt, M .

SOLID STATE IONICS, 1999, 126 (1-2) :89-95

[7] IONIC-CONDUCTIVITY OF CALCIA, YTTRIA, AND RARE EARTH DOPED CERIUM DIOXIDE [J].

DIRSTINE, RT ;

BLUMENTHAL, RN ;

KUECH, TF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1979, 126 (02) :264-269

[8]

FUJIMOTO FH, 1979, FAST ION TRANSP SOL, P649

[9] IONIC-CONDUCTIVITY OF CEO2 WITH TRIVALENT DOPANTS OF DIFFERENT IONIC-RADII [J].

GERHARDTANDERSON, R ;

NOWICK, AS .

SOLID STATE IONICS, 1981, 5 (OCT) :547-550

[10] Sintering and electrical properties of coprecipitation prepared Ce0.8Y0.2O1.9 ceramics [J].

Gu, YF ;

Li, G ;

Meng, GY ;

Peng, DK .

MATERIALS RESEARCH BULLETIN, 2000, 35 (02) :297-304