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$NiO–Ba_{0.95}Ca_{0.05}Ce_{0.9}Y_{0.1}O_{3−}$δ as a Modified Anode Material Fabricated by the Tape Casting Method
| Content Provider | MDPI |
|---|---|
| Author | Magdalena, Ziąbka Micha, ł Mosiałek Andrzej, Raźniak Dudek, Magdalena Lis, Bartłomiej Kluczowski, Ryszard Krauz, Mariusz Gajek, Marcin Rapacz-Kmita, Alicja Dudek, Piotr Majda, Dorota |
| Copyright Year | 2022 |
| Description | The development of new chemically resistant anodes for protonic ceramic fuel cells (PCFCs) is urgently required to avoid the costly deep hydrogen purification method. $Ba_{0.95}Ca_{0.05}Ce_{0.9}Y_{0.1}O_{3−}$δ (5CBCY), which is more chemically resistant than $BaCaCe_{0.9}Y_{0.1}O_{3}−_{δ}$, was here tested as a component of a composite NiO–5CBCY anode material. A preparation slurry comprising $5CBCY_{,}$ NiO, graphite, and an organic medium was tape cast, sintered and subjected to thermal treatment in 10 vol.% $H_{2}$ in Ar at 700 °C. Differential thermal analysis, thermogravimetry, quadrupole mass spectrometry, X-ray diffraction analysis, scanning electron microscopy, the AC four-probe method and electrochemical impedance spectroscopy were used for the investigation. The electrical conductivity of the Ni–5CBCY in $H_{2}$–Ar at 700 °C was 1.1 S/cm. In the same gas atmosphere but with an additional 5 vol.% $CO_{2}$, it was slightly lower, at 0.8 S/cm. The Ni–5CBCY cermet exhibited repeatable electrical conductivity values during Ni-to-NiO oxidation cycles and NiO-to-Ni reduction in the 5CBCY matrix, making it sufficient for preliminary testing in PCFCs. |
| Starting Page | 2489 |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma15072489 |
| Journal | Materials |
| Issue Number | 7 |
| Volume Number | 15 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-03-28 |
| Access Restriction | Open |
| Subject Keyword | Materials Ceramics Nuclear Energy and Engineering High-temperature Protonic Ceramic Fuel Cells Anode Cermet Tape Casting Bcy |
| Content Type | Text |
| Resource Type | Article |
