Browse > Article
http://dx.doi.org/10.4191/KCERS.2007.44.1.660

Defect Structure, Nonstoichiometry and Nonstoichiometry Relaxation of Complex Oxides  

Yoo, Han-Ill (Department of Materials Science and Engineering, Seoul National University)
Publication Information
Abstract
An SOFC consists of all ceramic complex oxides each with different electrochemical-property requirements. These requirements, in principle, can be made met to a great extent by controlling or tailoring the defect structure of the oxide. This paper reviews the defect structure, nonstoichiometry as a measure of the total defect concentration, and the defect relaxation kinetics of complex oxides that are currently involved in a variety of growing applications today.
Keywords
Defect structure; Nonstoichiometry; Nonstoichiometry Relaxation; Complex Oxides; SOFC;
Citations & Related Records

Times Cited By SCOPUS : 0
연도 인용수 순위
  • Reference
1 H. Schmalzried and C. Wagner, 'Disorder Structure in Ternary Ionic Crystals (in Ger.),' Z. Phys. Chem., B31 198-221 (1962)
2 H. Schmalzried, 'Point Defect in Ternary Ionic Crystals,'; pp. 265-303 in Progress in Solid State Chemistry, Vol. 2, Edited by H. Reiss, North-Holland Publishing Co., Amsterdam, 1964
3 F. A. Kroger, The Chemistry of Imperfect Crystals; 2nd ed., Chaps. 20 and 21, North-Holland Publishing Co., Amsterdam, 1974
4 P. Abelard and J.F. Baumard, 'Nonstoichiometry in Ternary Oxides. A New Graphical Representation of The Defect Configurations (in Sweden),' Science of Ceramics, 11 143-48 (1981)
5 D. M. Smyth, 'Thermodynamic Characterization of Ternary Compounds. I. The Case of Negligible Defect Association,' J. Solid State Chem., 16 [1-2] 73-81 (1976)   DOI   ScienceOn
6 D. M. Smyth, 'Thermodynamic Characterization of Ternary Compounds. II. The Case of Extensive Defect Association,' J. Solid State Chem., 20 [4] 359-64 (1977)   DOI   ScienceOn
7 R. Waser, 'Bulk Conductivity and Defect Chemistry of Acceptor-doped Strontium Titanate in the Quenched State,' J. Am. Ceram. Soc., 74 [8] 1934-40 (1991)   DOI
8 M. Martin, Private communication
9 H.-I. Yoo, C.-R. Song and D.-K. Lee, '$BaTiO_{3-{\delta}}$: Defect Structure, Electrical Conductivity, Chemical Diffusivity, Thermoelectric Power, and Oxygen Nonstoichiometry,' J. Electroceram., 8 5-36 (2002)   DOI   ScienceOn
10 C.-R. Song and H.-I. Yoo, 'Chemical Diffusivity of $BaTiO_{3-{\delta}}$: I. Experimental Determination,' Solid State Ionics, 120 [1-4] 141-53 (1999)   DOI   ScienceOn
11 C.-R. Song and H.-I. Yoo, 'Chemical Diffusivity of $BaTiO_{3-{\delta}}$: IV. Acceptor-doped Case,' J. Am. Ceram. Soc., 83 [4] 773-79 (2000)   DOI   ScienceOn
12 H.-I. Yoo and K. D. Becker, 'Effect of Hole-Trapping on Mass/Charge Transport Properties in Acceptor-doped $BaTiO_3$,' Phys. Chem. Chem. Phys., 7 2068-73 (2005)   DOI   ScienceOn
13 D.E. Rase and R. Roy, 'Phase Equilibria in the System $BaO-TiO_2$,' J. Am. Ceram. Soc., 38 [3] 102-13 (1955)   DOI
14 T. Negas, R.S. Roth, H.S. Parker and D. Minor, 'Subsolidus Phase Relations in the Barium Titanate-titanium Dioxide System,' J. Solid State Chem., 9 [3] 297-307 (1974)   DOI   ScienceOn
15 C.-R. Song and H.-I. Yoo, 'Chemical Diffusivity of $BaTiO_{3-{\delta}}$: Defect-chemical Analysis,' Phys. Rev. B, 61 [6] 3975-82 (2000)   DOI   ScienceOn
16 D.-K. Lee and H.-I. Yoo, 'Oxygen Nonstoichiometry of undoped $BaTiO_{3-{\delta}}$,' Solid State Ionics, 144 [1-2] 87-97 (2001)   DOI   ScienceOn
17 R. Wernicke, 'The Influence of Kinetic Processes on the Electrical Conductivity of Donor-doped $BaTiO_3$ Ceramics,' Phys. Stat. Sol. (a), 47 [1] 139-44 (1978)   DOI   ScienceOn
18 H.-J. Hagemann and D. Hennings, 'Reversible Weight Change of Acceptor-doped Barium Titanate,' J. Am. Ceram. Soc., 64 [10] 590-94 (1981)   DOI   ScienceOn
19 G.V. Bois, N.A. Mikhailova, E.I. Prodavtsova and V.A. Yusova, 'Partial Pressure of Oxygen and Oxygen Vacancies in Barium Titanate,' News. Acad. Sci. USSR, Inorg. Mat., 12 1302 (1976)
20 R.J. Panlener and R.N. Blumenthal, 'Titanium-rich Nonstoichiometric Barium Titanate. III. High-temperature Thermodynamic and X-ray Diffraction Measurements,' J. Am. Ceram. Soc., 54 [12] 610-13 (1971)   DOI
21 D.-K. Lee, J.-I. Jeon, M.-H. Kim, W. Choi, and H.-I. Yoo, 'Oxygen Nonstoichiometry (${\delta}$) of $TiO_{2-\delta}$ Revisited,' J. Solid State Chem., 178 [1] 185-93 (2005)   DOI   ScienceOn
22 D. Hennings, 'Defect Chemistry and Electrical Conductivity of Doped Barium Titanate Ceramics. Part III. Thermo-Gravimetric Investigations,' Philips Res. Rep., 31 [6] 516-25 (1976)
23 A.M.J.H. Seuter, 'Defect Chemistry and Electrical Transport Properties of Barium Titanate,' Phil. Res. Rep. Suppl., 3 [1] 1-84 (1974)
24 H.-I. Yoo, S.-W. Lee and C.-E. Lee, 'P-Type Partial Conductivity of Donor(La)-Doped $BaTiO_3$,' J. Electroceram., 10 215-19 (2003)   DOI   ScienceOn
25 W. Van Roosbroeck, 'The Transport of Added Current Carriers in a Homogeneous Semiconductor,' Phys. Rev., 91 282-89 (1953)   DOI
26 H.-I. Yoo and C.-E. Lee, 'Two-Fold Diffusion Kinetics of Oxygen Re-equilibration in Donor-doped $BaTiO_3$,' J. Am. Ceram. Soc., 88 [3] 617-23 (2005)   DOI   ScienceOn
27 J. Nowotny and M. Rekas, 'Defect Structure, Electrical Properties and Transport in Barium Titanate. VII. Chemical Diffusion in Nb-doped $BaTiO_3$,' Ceram. Int., 20 [4] 265-75 (1994)   DOI   ScienceOn
28 H.-I. Yoo, C.-R. Song, Y.-S. Lee and D.-K. Lee, 'Surface Reaction Kinetics in Oxygen Nonstoichiometry Re-equilibration of $BaTiO_{3-{\delta}}$,' Solid State Ionics, 160 [3-4] 381-87 (2003)   DOI   ScienceOn
29 J. Crank, The Mathematics of Diffusion; 2nd ed., pp. 60-1, Clarendon Press, Oxford, U.K., 1975
30 C. Wagner, 'Theory of the Tarnishing Process (in Ger.),' Z. Phys. Chem. B, 21 25-41 (1933)
31 C. Wagner, 'Determination of Small Deviations from the Ideal Stoichiometric Composition of Ionic Crystals and Other Binary Compounds,' Prog. Solid State Chem., 6 1-15 (1971)   DOI   ScienceOn
32 R. Wernicke, 'Defect Chemistry and Electrical Conductivity of Doped Barium Titanate Ceramics. Part IV. The Kinetics of Equilibrium Restoration in Barium Titanate Ceramics,' Philips Res. Rep., 31 [6] 526-43 (1976)
33 G. V. Lewis and C. R. A. Catlow, 'Computer Modeling of Barium Titanate,' Radiation Effects, 73 [1-4] 307-14 (1983)   DOI   ScienceOn
34 D.-K. Lee and H.-I. Yoo, 'Unusual Oxygen Re-equilibration Kinetics of $TiO_{2-\delta}$,' Solid State Ionics, 177 [1-2] 1-9 (2006)   DOI   ScienceOn
35 D. M. Smyth, The Defect Chemistry of Metal Oxides; Particularly Chap 14, Oxford University Press, New York, 2000