Electrical conductivity of manganese doped yttria (8 mol%) stabilized zirconia

被引：8

作者：

Mahapatra, Manoj K. ^{[1
]}

Li, Na ^{[1
]}

Verma, Atul ^{[1
]}

Singh, Prabhakar ^{[1
]}

机构：

[1] Univ Connecticut, Dept Mat Sci & Engn, Ctr Clean Energy Engn, Storrs, CT 06269 USA

来源：

SOLID STATE IONICS | 2013年 / 253卷

关键词：

Yttria stabilized zirconia; Manganese doped yttria stabilized zirconia; Electrical conductivity; Partial pressure of oxygen; OXIDE ELECTROLYSIS CELLS; DEFECT STRUCTURE; FUEL-CELLS; TRANSPORT; YSZ; DELAMINATION; TRANSITION; COMPOSITE; DIFFUSION; PHASE;

D O I：

10.1016/j.ssi.2013.10.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrical conductivity of 10 at.% manganese doped yttria (8 mol%) stabilized zirconia (Mn-YSZ) has been investigated using electrochemical cell technique in 800-1000 degrees C and 1-10(-20) atm oxygen partial pressure (Po-2) range. The electrical conductivity increases according to PO21/G power law with increasing Po-2, in 1-10(-5) atm range, remains Po-2 independent in 10(-5)-10(-15) atm range, and slightly decreases with decreasing Po-2 in 10(-15)-10(-20) atm range. The deviation from Po-2(1/4) power law is attributed to the presence of multivalent state of manganese ions in 1-10(-5) atm Po-2 range. The electrical conductivity of Mn-YSZ is lower than that of yttria stabilized zirconia in reducing atmosphere. At lower oxygen partial pressures, lattice strain, defect association, and electron trapping results in decreased electrical conductivity. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：223 / 226

页数：4

共 25 条

[1] Ageing behaviour of zirconia stabilised by yttria and manganese oxide [J].

Appel, CC ;

Bonanos, N ;

Horsewell, A ;

Linderoth, S .

JOURNAL OF MATERIALS SCIENCE, 2001, 36 (18) :4493-4501

[2] Accelerated degradation of 8.5 mol% Y2O3-doped zirconia by dissolved Ni [J].

Butz, B. ;

Lefarth, A. ;

Stoermer, H. ;

Utz, A. ;

Ivers-Tiffee, E. ;

Gerthsen, D. .

SOLID STATE IONICS, 2012, 214 :37-44

[3] Effect of La2Zr2O7 on Interfacial Resistance in Solid Oxide Fuel Cells [J].

Chen, A. ;

Smith, J. R. ;

Duncan, K. L. ;

DeHoff, R. T. ;

Jones, K. S. ;

Wachsman, E. D. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2010, 157 (11) :B1624-B1628

[4] Defect structure of yttria-stabilized zirconia and its influence on the ionic conductivity at elevated temperatures [J].

Goff, JP ;

Hayes, W ;

Hull, S ;

Hutchings, MT ;

Clausen, KN .

PHYSICAL REVIEW B, 1999, 59 (22) :14202-14219

[5]

Herle J.V., 2004, J EUR CERAM SOC, V24, P1177

[6] First-principles study and modeling of strain-dependent ionic migration in ZrO2 [J].

Hirschfeld, J. A. ;

Lustfeld, H. .

PHYSICAL REVIEW B, 2011, 84 (22)

[7] Electrical Properties of Modified TZP(+TiO(2),FeO(x)) [J].

Huang, X. J. ;

Weppner, W. .

IONICS, 1995, 1 (03) :220-227

[8] Development of lanthanum strontium manganite perovskite cathode materials of solid oxide fuel cells: a review [J].

Jiang, San Ping .

JOURNAL OF MATERIALS SCIENCE, 2008, 43 (21) :6799-6833

[9] ELECTRICAL-PROPERTIES OF TRANSITION-METAL-DOPED YSZ [J].

KAWADA, T ;

SAKAI, N ;

YOKOKAWA, H ;

DOKIYA, M .

SOLID STATE IONICS, 1992, 53 :418-425

[10] Electrical conductivity and defect structure of manganese oxide doped yttria-stabilized zirconia (3 mol%Y2O3) [J].

Kawashima, T .

MATERIALS TRANSACTIONS JIM, 1998, 39 (11) :1115-1120

← 1 2 3 →