X-ray Photoelectron Spectroscopy Analysis of Scandia-Ceria-Stabilized Zirconia Composites with Different Transport Properties
This work aims to study a possible modification in the electronic structure of scandia-ceria-stabilized zirconia (10Sc1CeSZ) ceramics sintered at different temperatures. In addition to using X-ray diffraction (XRD), scanning electron microscopy (SEM) and impedance spectroscopy to investigate the str...
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2023-08-01
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| author | Iraida N. Demchenko Kostiantyn Nikiforow Maryna Chernyshova Yevgen Melikhov Yevgen Syryanyy Nadiia Korsunska Larysa Khomenkova Yehor Brodnikovskyi Dmytro Brodnikovskyi |
| author_facet | Iraida N. Demchenko Kostiantyn Nikiforow Maryna Chernyshova Yevgen Melikhov Yevgen Syryanyy Nadiia Korsunska Larysa Khomenkova Yehor Brodnikovskyi Dmytro Brodnikovskyi |
| author_sort | Iraida N. Demchenko |
| collection | DOAJ |
| description | This work aims to study a possible modification in the electronic structure of scandia-ceria-stabilized zirconia (10Sc1CeSZ) ceramics sintered at different temperatures. In addition to using X-ray diffraction (XRD), scanning electron microscopy (SEM) and impedance spectroscopy to investigate the structural and electrical properties, we employed X-ray photoelectron spectroscopy (XPS) to determine the chemical state information of the atoms involved, along with compositional analysis. As expected, a significant increase in grain ionic conductivity with the sintering temperature was present. This increase was accompanied by a decrease in the porosity of the samples, an increase in the grain size, and a transformation from the rhombohedral to the cubic phase. The phase transformation was detected not only using XRD, but also using XPS and, for this type of ceramic, XPS detected this transformation for the first time. In addition to the changes in the structural characteristics, the increase in the ionic conductivity was accompanied by a modification in the electronic structure of the ceramic surface. The XPS results showed that the surface of the ceramic sintered at the lower temperature of 1100 °C had a higher amount of Zr–OH bonds than the surface of the ceramic sintered at the higher temperature of 1400 °C. The existence of these Zr–OH bonds was confirmed using Fourier-transform infrared spectroscopy (FTIR). From this result, taken together with the difference between the oxygen/zirconium ratios in these ceramics, also identified using XPS, we conclude that there were fewer oxygen vacancies in the ceramic sintered at the lower temperature. It is argued that these two factors, together with the changes in the structural characteristics, have a direct influence on the conductive properties of the studied ceramics sintered at different temperatures. |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T23:46:44Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-ab521f7e29ea41b3a49b2df30141e8912023-11-19T01:58:28ZengMDPI AGMaterials1996-19442023-08-011616550410.3390/ma16165504X-ray Photoelectron Spectroscopy Analysis of Scandia-Ceria-Stabilized Zirconia Composites with Different Transport PropertiesIraida N. Demchenko0Kostiantyn Nikiforow1Maryna Chernyshova2Yevgen Melikhov3Yevgen Syryanyy4Nadiia Korsunska5Larysa Khomenkova6Yehor Brodnikovskyi7Dmytro Brodnikovskyi8Institute of Plasma Physics and Laser Microfusion, ul. Hery 23, 01-497 Warsaw, PolandInstitute of Physical Chemistry Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warsaw, PolandInstitute of Plasma Physics and Laser Microfusion, ul. Hery 23, 01-497 Warsaw, PolandInstitute of Fundamental Technological Research Polish Academy of Sciences, ul. Pawinskiego 5b, 02-106 Warsaw, PolandInstitute of Plasma Physics and Laser Microfusion, ul. Hery 23, 01-497 Warsaw, PolandV. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45 Nauky Ave., 03028 Kyiv, UkraineV. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine, 45 Nauky Ave., 03028 Kyiv, UkraineFrantsevich Institute for Problems of Materials Science, NAS of Ukraine, Krzhizhanovskoho Str. 3, 03142 Kyiv, UkraineFrantsevich Institute for Problems of Materials Science, NAS of Ukraine, Krzhizhanovskoho Str. 3, 03142 Kyiv, UkraineThis work aims to study a possible modification in the electronic structure of scandia-ceria-stabilized zirconia (10Sc1CeSZ) ceramics sintered at different temperatures. In addition to using X-ray diffraction (XRD), scanning electron microscopy (SEM) and impedance spectroscopy to investigate the structural and electrical properties, we employed X-ray photoelectron spectroscopy (XPS) to determine the chemical state information of the atoms involved, along with compositional analysis. As expected, a significant increase in grain ionic conductivity with the sintering temperature was present. This increase was accompanied by a decrease in the porosity of the samples, an increase in the grain size, and a transformation from the rhombohedral to the cubic phase. The phase transformation was detected not only using XRD, but also using XPS and, for this type of ceramic, XPS detected this transformation for the first time. In addition to the changes in the structural characteristics, the increase in the ionic conductivity was accompanied by a modification in the electronic structure of the ceramic surface. The XPS results showed that the surface of the ceramic sintered at the lower temperature of 1100 °C had a higher amount of Zr–OH bonds than the surface of the ceramic sintered at the higher temperature of 1400 °C. The existence of these Zr–OH bonds was confirmed using Fourier-transform infrared spectroscopy (FTIR). From this result, taken together with the difference between the oxygen/zirconium ratios in these ceramics, also identified using XPS, we conclude that there were fewer oxygen vacancies in the ceramic sintered at the lower temperature. It is argued that these two factors, together with the changes in the structural characteristics, have a direct influence on the conductive properties of the studied ceramics sintered at different temperatures.https://www.mdpi.com/1996-1944/16/16/5504XPSzirconiascandia-ceria-stabilized zirconiaScCSZSOFC |
| spellingShingle | Iraida N. Demchenko Kostiantyn Nikiforow Maryna Chernyshova Yevgen Melikhov Yevgen Syryanyy Nadiia Korsunska Larysa Khomenkova Yehor Brodnikovskyi Dmytro Brodnikovskyi X-ray Photoelectron Spectroscopy Analysis of Scandia-Ceria-Stabilized Zirconia Composites with Different Transport Properties Materials XPS zirconia scandia-ceria-stabilized zirconia ScCSZ SOFC |
| title | X-ray Photoelectron Spectroscopy Analysis of Scandia-Ceria-Stabilized Zirconia Composites with Different Transport Properties |
| title_full | X-ray Photoelectron Spectroscopy Analysis of Scandia-Ceria-Stabilized Zirconia Composites with Different Transport Properties |
| title_fullStr | X-ray Photoelectron Spectroscopy Analysis of Scandia-Ceria-Stabilized Zirconia Composites with Different Transport Properties |
| title_full_unstemmed | X-ray Photoelectron Spectroscopy Analysis of Scandia-Ceria-Stabilized Zirconia Composites with Different Transport Properties |
| title_short | X-ray Photoelectron Spectroscopy Analysis of Scandia-Ceria-Stabilized Zirconia Composites with Different Transport Properties |
| title_sort | x ray photoelectron spectroscopy analysis of scandia ceria stabilized zirconia composites with different transport properties |
| topic | XPS zirconia scandia-ceria-stabilized zirconia ScCSZ SOFC |
| url | https://www.mdpi.com/1996-1944/16/16/5504 |
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