Electrical conductivity of low-doped ceria-based ceramics
Ceria-based ceramic materials (M<sub>0.01</sub>Ce<sub>0.99</sub>O<sub>2</sub>) were synthesized by a co-precipitation method and sintered at 1000 °C for 4 h in air. The electrical conductivity of these systems was measured by AC impedance spectroscopy at 500-750 °C in air. Introduction of small amounts of dopants such as copper, bismuth, samarium, and neodymium increased this parameter by 4-5 times. However, the optimal dopants were Bi or Nd due to their higher conductivity and oxide ion transference number.
Authors
- Igor V. Zagaynov (ORCID: https://orcid.org/0000-0001-5485-7403)
- Sergey V. Fedorov (ORCID: https://orcid.org/0000-0002-9373-5086)
- О. С. Антонова (ORCID: https://orcid.org/0000-0001-9651-4580)
Institutions
- Baikov Institute of Metallurgy and Materials Science (RU)
Publication Details
- Journal
- Dalton Transactions
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d4dt03165b
- Primary Topic
- Advancements in Solid Oxide Fuel Cells
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Ministry of Science and Higher Education of the Russian Federation