Impedance spectroscopy of acceptor-doped CaZrO3 with cation nonstoichiometry
Source abstract
Abstract
The electrical conductivities of acceptor-doped Ca1−x Zr0.99M0.01O3−δ (M = Mg2+, In3+) systems have been investigated as a function of cation nonstoichiometry (0 ≤ x ≤ 0.05). The electrical characterization was carried out using impedance spectroscopy at different temperatures in dry air. The contributions of grain (R g) and grain boundary resistance (R gb ) to the total resistance (R t) were examined with the impedance and/or modulus plane representation. For the stoichiometric composition, the R t of the specimen decreased with acceptor doping. When Ca deficiency was small, both the R g and the R gb slightly increased with nonstoichiometry (x). However, when Ca deficiency was large and excess zirconia was found as a second phase, the R gb and the contribution of the R gb to the R t significantly increased with x.
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Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Ferroelectric and Piezoelectric Materials · Electronic and Structural Properties of Oxides
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References (16)
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1. H. Iwahara, T. Esaka, H. Uchida, and N. Maeda, Solid State Ionics, 3/4, 359–363 (1981).10.1016/0167-2738(81)90113-2 ↗
2. H.J.M Bouwmeester and A.J. Burggraaf, in The CRC handbook of Solid State Electrochemistry, edited by P.J. Gellings and H.J.M. Bouwmeester CRC Press Inc., Boca Raton (1997) pp. 481–553.10.1201/9781420049305 ↗
3. D. Janke, Metallurgical Transactions B, 227–235 (1982).10.1007/BF02664579 ↗
4. V. Longo and F. Marchini, F. Ricciardiello, and A. de Pretis, La Ceramica, 34, 23–28 (1981).
5. V. Longo and F. Ricciardiello, Silicate Industriels, 1, 3–7 (1981).
6. C. Wang, X. Xu, H. Yu, Y. Wen, and K. Zhao, Solid State Ionics, 28–30, 542–545 (1988).10.1016/S0167-2738(88)80099-7 ↗
7. S.S. Pandit, A. Weyl, and D. Janke, Solid State Ionics, 69, 93–99 (1994).10.1016/0167-2738(94)90396-4 ↗
8. T. Yajima, H. Kazeoka, T. Yogo, and H. Iwahara, Solid State Ionics, 47, 271–275 (1991).10.1016/0167-2738(91)90249-B ↗
9. H. Iwahara, T. Yajima, T. Hibino, K. Ozaki, and H. Suzuki, Solid State Ionics, 61, 65–69 (1993).10.1016/0167-2738(93)90335-Z ↗
10. N. Kurita, N. Fukatsu, K. Ito, and T. Ohashi, J. Electrochem. Soc., 142, 1552–1559 (1995).10.1149/1.2048611 ↗
11. T. Yajima, K. Koide, H. Takai, N. Fukatsu, and H. Iwahara, Solid State Ionics, 79, 333–337 (1995).10.1016/0167-2738(95)00083-I ↗
12. N. Fukatsu, N. Kurita, K. Koide, and T. Ohashi, Solid State Ionics, 113–115, 219–227 (1998).10.1016/S0167-2738(98)00375-0 ↗
13. G. Rog, M. Dudek, A. Kozlowska-Rog, and M. Bucko, Electrochemica Acta, 47, 4523–4529 (2002).10.1016/S0013-4686(02)00540-6 ↗
14. M. Dudek and M. Bucko, Solid State Ionics, 157, 183–187 (2003).10.1016/S0167-2738(02)00207-2 ↗
15. S. C. Hwang and G. M. Choi, J. European Cer. Soc. 25, 2609–2612 (2005).10.1016/j.jeurceramsoc.2005.03.111 ↗
16. E. Chinarro, J. R. Jurado, F. M. Figueiredo, and J.R. Frade, Solid State Ionics, 160, 161–168 (2003).10.1016/S0167-2738(03)00151-6 ↗