Structural study and proton conductivity in Yb-doped BaZrO3

被引：61

作者：

Ahmed, I. ^{[1
]}

Eriksson, S.-G.

Ahlberg, E.

Knee, C. S.

Gotlind, H.

Johansson, L.-G.

Karlsson, M.

Matic, A.

Borjesson, L.

机构：

[1] Chalmers Univ Technol, Dept Environm Inorgan Chem, SE-41296 Gothenburg, Sweden

[2] Chalmers Univ Technol, Dept Appl Phys, SE-41296 Gothenburg, Sweden

[3] Univ Gothenburg, Dept Chem, SE-41296 Gothenburg, Sweden

来源：

SOLID STATE IONICS | 2007年 / 178卷 / 7-10期

关键词：

X-ray diffraction; neutron diffraction; Rietveld refinement; proton conductor; perovskite;

D O I：

10.1016/j.ssi.2006.11.011

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：

Traditional solid state sintering has been used to prepare the perovskite BaZr0.9Yb0.1O3-delta. Analysis of X-ray powder diffraction data shows that an increase of the unit cell parameter, a, was observed compared to undoped BaZrO3. Rietveld analysis of room temperature neutron powder diffraction data confirmed cubic symmetry (space group Pm-3m). Dynamic thermogravimetric analysis (TGA) indicates that the hydration process occurs below 200 degrees C. The strong O-H stretch band, 2500-3500 cm(-1), in the infrared absorbance spectrum clearly manifests the presence of protons in the hydrated material. Proton conductivity was investigated on hydrated and as-prepared samples under dry and wet atmospheres, respectively. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：515 / 520

页数：6

共 31 条

[1] Proton conductivity and low temperature structure of In-doped BaZrO3 [J].

Ahmed, I. ;

Eriksson, S. -G. ;

Ahlberg, E. ;

Knee, C. S. ;

Karlsson, M. ;

Matic, A. ;

Engberg, D. ;

Borjesson, L. .

SOLID STATE IONICS, 2006, 177 (26-32) :2357-2362

[2] Synthesis and structural characterization of perovskite type proton conducting BaZr1-xInxO3-δ (0.0≤x≤0.75) [J].

Ahmed, I. ;

Eriksson, S-G. ;

Ahlberg, E. ;

Knee, C. S. ;

Berastegui, P. ;

Johansson, L-G. ;

Rundlof, H. ;

Karlsson, M. ;

Matic, A. ;

Borjesson, L. ;

Engberg, D. .

SOLID STATE IONICS, 2006, 177 (17-18) :1395-1403

[3] Location of deuteron sites in the proton conducting perovskite BaZr0.50In0.50O3-y [J].

Ahmed, Istaq ;

Knee, Christopher S. ;

Karlsson, Maths ;

Eriksson, S. -G. ;

Henry, Paul F. ;

Matic, Aleksandar ;

Engberg, Dennis ;

Borjesson, Lars .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 450 (1-2) :103-110

[4]

Ahmed I, 2007, CERAM ENG SCI PROC, V27, P105

[5]

Bohn HG, 2000, J AM CERAM SOC, V83, P768

[6] OXIDE ION CONDUCTION IN YTTERBIUM-DOPED STRONTIUM CERATE [J].

BONANOS, N ;

ELLIS, B ;

MAHMOOD, MN .

SOLID STATE IONICS, 1988, 28 :579-584

[7] TRANSPORT-PROPERTIES AND CONDUCTION MECHANISM IN HIGH-TEMPERATURE PROTONIC CONDUCTORS [J].

BONANOS, N .

SOLID STATE IONICS, 1992, 53 :967-974

[8] Investigations into Sr3CaZr0.5Ta1.5O8.75, a novel proton conducting perovskite oxide [J].

Corcoran, DJD ;

Irvine, JTS .

SOLID STATE IONICS, 2001, 145 (1-4) :307-313

[9]

GLOCKNER R, 2000, THESIS U OSLO

[10] Doping and defect association in AZrO3 (A = Ca, Ba) and LaMO3 (M = Sc, Ga) perovskite-type ionic conductors [J].

Islam, MS ;

Slater, PR ;

Tolchard, JR ;

Dinges, T .

DALTON TRANSACTIONS, 2004, (19) :3061-3066

← 1 2 3 4 →