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http://dx.doi.org/10.4191/KCERS.2002.39.4.367

Electrical Conduction in Y2O3-doped SrZrO3-metal Electrode System  

Baek, Hyun-Deok (Department of Materials Science and Engineering, Hong-Ik University)
Lee, Poong-Hun (Department of Materials Science and Engineering, Hong-Ik University)
Publication Information
Journal of the Korean Ceramic Society / v.39, no.4, 2002 , pp. 367-376 More about this Journal
Abstract
Electrical conduction in $SrZr_{1-x}Y_xO_{3-\delta}$((x=0.05, 0.10)-metal electrode system was investigated by impedance spectroscopy and two-probe d.c. conductivity measurement. Electrode conductivity in anodic direction varies with $P_W^{1/2}$( and that in cathodic direction with $P_{O2}^{1/4}$ in oxidizing atmosphere. In hydrogen atmosphere, the addition of water vapor increased the electrode conductivity both in anodic and cathodic direction. Increasing dopant concentration from 5 to 10% showed a more than four times increase in anodic conduction as well as bulk conduction of the solid electrolyte. This observation implies that unfilled oxygen vacancy concentration increases rapidly as the dopant content increases in humid atmosphere. The activation energy of cathodic conduction in Pt and Ag electrode was nearly same below $800^{\circ}C$ which means the rate of cathodic reaction is determined by the reaction in the electrolyte surface rather than on the metal electrodes.
Keywords
SrZrO$_3$; Impedance spectroscopy; Electrode resistance; Water vapor pressure;
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1 I. Kosaki, J. G. M. Becht, R. van Landschoot and J. Schoonman, 'EIectrical Properties of$SrCe_0.95Yb_0.05O_3$ in Hydrogen Containing Atmospheres,' Solid State lonics, 59 287-96 (1993)   DOI   ScienceOn
2 H-D. Baek, 'Modeling of Electrical Conductivity in High-temperature Proton-conducting Oxides,' Solid State lonics, 110 255-62 (1998)   DOI   ScienceOn
3 K. D. Kreuer, 'Aspects of the Formation and Mobility of Protonic Charge Can-iers and the Stability of Perovskite-type Oxides,' Solid State lonics, 125 285-302 (1999)   DOI   ScienceOn
4 R. J. Phillips, N. Bonanos, F. W. Poulsen and E. O. Ahlgren, 'Structural and Electrical Characterisation of $SrCe_1-xY_xO_xi$,' SoIid State lonics, 125 389-95 (1999)   DOI   ScienceOn
5 N. Bonanos, 'Oxide-based Protonic Conductors: Point Defects and Transport Properties,' Solid State lonics, 145 265-74 (2001)   DOI   ScienceOn
6 P. Fabry and M. Kleitz, 'Influence of the Metal and the Etectrolyte Composition on the Characteristics of the Oxy-gen Electrode Reaction on the Solid Oxide Electrolyte,' Electroanal. Chem. Interfacial Electrochem., 57 165-77(1974)   DOI   ScienceOn
7 M. J. Verkerk, M. W. J. Hammink and A. J. Burggraaf, 'Oxygen Transfer on Substituted Zr$O_2$, $Bi_2O_2$ and CE$O_2$ Electrolytes with Platinum Electrodes,' J. Electrochem. Soc., 130 [1] 70-84 (1983)   DOI   ScienceOn
8 D. Kek, N. Bonanos, M. Mogensen and S. Pejovnik, 'Effect of Electrode Material on the Oxidation of $H_2$ at the Metal-$Sr_0.995Ce_0.95Y_0.05O_2.970$ Interface,' Solid State lonics, 131 249-59 (2000)   DOI   ScienceOn
9 D. Kek and N. Bonanos, 'Investigation of Hydrogen Oxi-dation Reaction on a Metal/Perovskite Proton Conductor Interface by Impedance Spectroscopy,' Vacuum, 61 453-57 (2001)   DOI   ScienceOn
10 J. Mizusaki, H. Tagawa, T. Saito, K. Kamitani, T. Yama-mura, K. Hirano, S. Ehara, T. Takagi, T. Hikita, M. Ippom-matsu, S. Nakagawa and K. Hashimoto, 'Preparation of Nickel Pattern Electrodes on YSZ and their Electrochemical Properties in $H_2$-$H_2$O Atmospheres,' pp. 553-41 in Pro-Ceedings of Third International Symposium on Solid Oxide Feul Cells. Ed. by S. C. Singhal and H. Iwahara, The Elec-trochemical. Soc., Inc., Pennington, NJ, 1993
11 S. P. Jiang, 'The Role of Water Vapor on the Kinetics of $H_2$Oxidation on Porous Ni Electrode at $1000^oC$,' pp. 819-28 in Science and Technology of Zirconia V, Ed. by S. P. S. Bad-wal, M. J. Bannister and R. H. J. Hannink, Technomic Pub-lishing Co., Lancaster, 1993
12 S. P. Jiang, J. G. Love and S. P. S. Badwal, 'Electrochemical Techniques in Studies of Solid lon Conductors,' pp. 81-132 in Electncal Properties of Oxide Materials, Ed. by J. Nowotny and C. C. Sorrell, Trans Tech Publications, Swit-zerland, 1997
13 K. D. Kreuer, 'On the Development of Proton Conducting Materials for Technological Applications,' Solid State lon-ics, 97 1-15 (1997)   DOI   ScienceOn
14 J. Mizusaki and H. Tagawa, 'Kinetics of the Electrode at the $H_2-H_2O$ Porous Pt/Stabilized Zirconia Interface,' J. Elec-trochem. Soc., 141 [6] 1674-83 (1979)
15 R. Hempelmann, J. Eschenbaum, M. Altmayer, B. Gro$\beta$, D. Grambole, F. Herrmann, D. Nagengast, J. Krauser and Weidinger, 'Pressure/Composition Isotherms of Proton Con-ducting $Sr_Yb_0.05Zr_0.95O_2.975/H_2O$ Means of Nuclear Res-onance Reaction Analysis,' Ber. Bunsenes. Phys. Chem., 101 985-93 (1997)   DOI
16 J. A. Labrincha, J. R. Frade and F. M. B. Marques, 'Defect Structure of SrZr$O_3$,' SoUd State lonics, 61, 71-5 (1993)   DOI   ScienceOn
17 J. Muller, K. D. Kreuer, J. Maier, S. Matsuo and M. Ish-igame, 'A Conductivity and Thermal Gravimetric Analysis of a Y-doped SrZr$O_3$ Single Crystal,' Solid State lonics, 97 421-27 (1997)   DOI   ScienceOn
18 B. C. Nguyen, T. A. Lin and D. M. Mason, 'Electrocatalytic Reactivity of Hydrocarbons on a Zirconia Electrolyte Sur-face,' J. Electrochem. Soc., 133 [9] 1807-15 (1986)   DOI   ScienceOn
19 N. Bonanos and M. Mogensen, '$H_2$ Oxidation at the Inter-Face Ni/$Sr_0.995Ce_0.95Y_0.05O_2.970$,' So lid State lonics, 97 483-88 (1997)   DOI   ScienceOn
20 D. Kek and N. Bonanos, 'Electrochemical H-D Isotope Effect at Metal-perovskite Proton Conductor Interfaces,' SoIid State lonics, 125 345-53 (1999)   DOI   ScienceOn
21 D. Y. Wang and A. S. Nowick, 'Cathodic and Anodic Polar-ization Phenomena at Platinum Electrodes with Doped Ce$O_2$ as Electrolyte,' J. Electrochem. Soc., 126 [7] 1166-72(1979)   DOI   ScienceOn
22 Yu. M. Baikov and E. K. Shalkova, 'Hydrogen in Per-ovskites,' J. Solid State Chem., 97 224-27 (1992)   DOI   ScienceOn
23 R. Waser, 'Solubility of Hydrogen Defects in Doped and Undoped BaTi$O_3$,' J. Am. Ceram. Soc., 71 [1] 58-63 (1988)   DOI
24 H-D. Baek and J-H. Noh, 'Electrical Conduction in $SrZr_0.95Y_0.05O_2.975$ Ceramics,' Kor. J. Ceram., 5 [3] 288-95 (1999)
25 T. Norby and P. Kofstad, 'Proton and Native Conductivities in $Y_2O_3$ at High Temperatures,' Solid State lonics, 20 169-84 (1986)   DOI   ScienceOn
26 D. Y. Wang and A. S. Nowick, 'Cathodic and Anodic Polar-ization Phenomena at Platinum Electrodes with Doped Ce$O_2$ as Electrolyte,' J. Electrochem. Soc., 126 [7] 1166-72 (1979)   DOI   ScienceOn
27 E. K. Shalkova, Y. M. Baikov, B. T. Melekh, T. A. Per-evalova and Y. N. Filin, 'Hydrogen in the Complex Oxides with the Perovskite Structure CaTI$O_3$, SrTi$O_3$, BaTi$O_3$ and BaCe$O_3$,' Russ. J.Inorg. Chem., 35 [1] 148-49 (1990)
28 H. Uchida, S. Tanaka and H. Iwahara, 'Polahzation at Pt Electrodes of a Fuel Cell with a High Temperature-type Pro-tan Conducutive Solid Electrolyte,' Solid State Ionics, 15 937 (1985)