Electrical Properties Of Indium And Yttrium-Doped Barium Cerate-Based Compounds For Use As Ceramic Fuel Cell Electrolytes
The aim of this work is to compare the electrical properties of BaCe0.85Y0.15O3−δ (BCY15), BaCe0.70In0.30O3−δ (BCI30) and a composite material consisting of 30%vol. BCY15 and 70%vol. Ce0.85Y0.15O2−δ (YDC15). BCY15 and YDC15 were synthesized by co-precipitation, whereas BCI30 was obtained using the s...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Polish Academy of Sciences
2015-06-01
|
| Series: | Archives of Metallurgy and Materials |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0247/amm-2015-0247.xml?format=INT |
| _version_ | 1818476746788306944 |
|---|---|
| author | Gawel R. Przybylski K. |
| author_facet | Gawel R. Przybylski K. |
| author_sort | Gawel R. |
| collection | DOAJ |
| description | The aim of this work is to compare the electrical properties of BaCe0.85Y0.15O3−δ (BCY15), BaCe0.70In0.30O3−δ (BCI30) and a composite material consisting of 30%vol. BCY15 and 70%vol. Ce0.85Y0.15O2−δ (YDC15). BCY15 and YDC15 were synthesized by co-precipitation, whereas BCI30 was obtained using the solid-state reaction method. Pellets were initially formed from powders at 5 MPa, after which they were isostatically pressed at 250 MPa and sintered at 1500°C. Electrochemical impedance spectroscopy (EIS) was used to determine the electrical properties of the samples in both air (pO2 = 0.021 MPa) and Ar-5%H2 atmospheres. In the temperature range 200-400°C in air atmosphere the highest conductivity values were determined for BCY15 (5,22·10−5 − 2.74·10−3 S/cm). On the other hand, the electrical conductivity values obtained for Y70B30 in both atmospheres between 200 and 550°C are in the order of magnitude of 10−7 − 10−3 S/cm. Consequently, it can be concluded that the compounds exhibit significant H+ and O2− electrical conductivity at temperatures above 500°C, which indicates the possibility for their potential use as ceramic fuel cell electrolytes. |
| first_indexed | 2024-12-10T09:29:16Z |
| format | Article |
| id | doaj.art-382971db4b4449f2aa720056dff465c6 |
| institution | Directory Open Access Journal |
| issn | 2300-1909 |
| language | English |
| last_indexed | 2024-12-10T09:29:16Z |
| publishDate | 2015-06-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Metallurgy and Materials |
| spelling | doaj.art-382971db4b4449f2aa720056dff465c62022-12-22T01:54:24ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092015-06-0160298999210.1515/amm-2015-0247amm-2015-0247Electrical Properties Of Indium And Yttrium-Doped Barium Cerate-Based Compounds For Use As Ceramic Fuel Cell ElectrolytesGawel R.0Przybylski K.1 AGH UNIVERSITY OF SCIENCE AND TECHNOLOGY, AL. A. MICKIEWICZA 30, 30-059 KRAKÓW, POLAND AGH UNIVERSITY OF SCIENCE AND TECHNOLOGY, AL. A. MICKIEWICZA 30, 30-059 KRAKÓW, POLANDThe aim of this work is to compare the electrical properties of BaCe0.85Y0.15O3−δ (BCY15), BaCe0.70In0.30O3−δ (BCI30) and a composite material consisting of 30%vol. BCY15 and 70%vol. Ce0.85Y0.15O2−δ (YDC15). BCY15 and YDC15 were synthesized by co-precipitation, whereas BCI30 was obtained using the solid-state reaction method. Pellets were initially formed from powders at 5 MPa, after which they were isostatically pressed at 250 MPa and sintered at 1500°C. Electrochemical impedance spectroscopy (EIS) was used to determine the electrical properties of the samples in both air (pO2 = 0.021 MPa) and Ar-5%H2 atmospheres. In the temperature range 200-400°C in air atmosphere the highest conductivity values were determined for BCY15 (5,22·10−5 − 2.74·10−3 S/cm). On the other hand, the electrical conductivity values obtained for Y70B30 in both atmospheres between 200 and 550°C are in the order of magnitude of 10−7 − 10−3 S/cm. Consequently, it can be concluded that the compounds exhibit significant H+ and O2− electrical conductivity at temperatures above 500°C, which indicates the possibility for their potential use as ceramic fuel cell electrolytes.http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0247/amm-2015-0247.xml?format=INTperovskitessolid oxide fuel cell electrolyteselectrical conductivitycomposite materials |
| spellingShingle | Gawel R. Przybylski K. Electrical Properties Of Indium And Yttrium-Doped Barium Cerate-Based Compounds For Use As Ceramic Fuel Cell Electrolytes Archives of Metallurgy and Materials perovskites solid oxide fuel cell electrolytes electrical conductivity composite materials |
| title | Electrical Properties Of Indium And Yttrium-Doped Barium Cerate-Based Compounds For Use As Ceramic Fuel Cell Electrolytes |
| title_full | Electrical Properties Of Indium And Yttrium-Doped Barium Cerate-Based Compounds For Use As Ceramic Fuel Cell Electrolytes |
| title_fullStr | Electrical Properties Of Indium And Yttrium-Doped Barium Cerate-Based Compounds For Use As Ceramic Fuel Cell Electrolytes |
| title_full_unstemmed | Electrical Properties Of Indium And Yttrium-Doped Barium Cerate-Based Compounds For Use As Ceramic Fuel Cell Electrolytes |
| title_short | Electrical Properties Of Indium And Yttrium-Doped Barium Cerate-Based Compounds For Use As Ceramic Fuel Cell Electrolytes |
| title_sort | electrical properties of indium and yttrium doped barium cerate based compounds for use as ceramic fuel cell electrolytes |
| topic | perovskites solid oxide fuel cell electrolytes electrical conductivity composite materials |
| url | http://www.degruyter.com/view/j/amm.2015.60.issue-2/amm-2015-0247/amm-2015-0247.xml?format=INT |
| work_keys_str_mv | AT gawelr electricalpropertiesofindiumandyttriumdopedbariumceratebasedcompoundsforuseasceramicfuelcellelectrolytes AT przybylskik electricalpropertiesofindiumandyttriumdopedbariumceratebasedcompoundsforuseasceramicfuelcellelectrolytes |