Proton conduction at the surface of Y-doped BaCeO3 and its application to an air/fuel sensor
Source abstract
Abstract
25 mol% Y3+-doped BaCeO3 (BCY25) showed an extremely low activation energy of 0.3 eV for proton conduction at the surface. The resulting overall conductivity at the surface reached 8.24 × 10−3 S cm−1 at 400°C, which was 3, 8, and 28 times higher than those in the bulk of BCY25, 20 mol% Sm3+-doped ceria, and 8 mol% yttria-stabilized zirconia, respectively. Such fast proton conduction enabled an air/fuel (A/F ) sensor using BCY25 as the solid electrolyte to work above 150°C for H2 and above 250°C for C2H4.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Electronic and Structural Properties of Oxides · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
1. W. J. Fleming J. Electrochem. Soc. 124 (1977) 21.10.1149/1.2133235 ↗
2. N. Bonanos, B. Ellis, K. S. Knight and M. N. Mahmood Solid State Ionics 35 (1989) 179.10.1016/0167-2738(89)90028-3 ↗
3. T. Norby ibid. 40/41 (1990) 857.10.1016/0167-2738(90)90138-H ↗
4. R. C. T. Slade and N. Singh J. Mater. Chem. 1 (1991) 441.10.1039/jm9910100441 ↗
5. J. F. Liu and A. S. Nowick Solid State Ionics 50 (1992) 131.10.1016/0167-2738(92)90045-Q ↗
6. M. J. Scholten, J. Schoonman, J. C. Van Miltenburg and H. A. J. Oonk ibid. 61 (1993) 83.10.1016/0167-2738(93)90338-4 ↗
7. T. He, K. D. Kreuer, Yu. M. Baikov and J. Maier ibid. 95 (1997) 301.10.1016/S0167-2738(96)00613-3 ↗
8. H. Iwahara, T. Yajima, T. Hibino and H. Ushida J. Electrochem. Soc. 140 (1993) 1687.10.1149/1.2221624 ↗
9. N. Bonanos, B. Ellis and M. N. Mahmood Solid State Ionics 44 (1991) 305.10.1016/0167-2738(91)90023-5 ↗
10. Y. Du and A. S. Nowick ibid. 91 (1996) 85.10.1016/S0167-2738(96)00409-2 ↗
11. T. Schober, F. Krug and W. Schilling ibid. 97 (1997) 369.10.1016/S0167-2738(97)00028-3 ↗
12. T. Hibino and H. Iwahara Chem. Lett. (1992) 1225.10.1246/cl.1992.1225 ↗
13. N. Taniguchi, E. Yasumoto, Y. Nakagiri and T. Gamo J. Electrochem. Soc. 145 (1998) 1744.10.1149/1.1838551 ↗
14. J. Guan, S. E. Dorris, U. Balachandran and M. Liu Solid State Ionics 100 (1997) 45.10.1016/S0167-2738(97)00320-2 ↗
15. T. Hibino, K. Ushiki and Y. Kuwahara J. Chem. Soc., Chem. Commun. (1995) 1001.
16. G. Marnellos and M. Stoukides Science 282 (1998) 98.10.1126/science.282.5386.98 ↗
17. H. Iwahara Solid State Ionics 77 (1995) 289.10.1016/0167-2738(95)00051-7 ↗
18. J. Guan, S. E. Dorris, U. Balachandran and M. Liu J. Electrochem. Soc. 145 (1998) 1780.10.1149/1.1838557 ↗
19. T. Hibino, A. Hashimoto, K. Mori and M. Sano J. Phys. Chem. B 105 (2001) 10648.10.1021/jp012094k ↗