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| Content Provider | Springer Nature Link |
|---|---|
| Author | Briois, P. Oliveira, J. C. Lapostolle, F. Perry, F. Billard, A. Cavaleiro, A. |
| Copyright Year | 2007 |
| Abstract | Nd$_{2}$CuO$_{4}$ and La$_{2}$CuO$_{4}$ are potential candidates as cathode material for intermediate temperature-solid oxide fuel cells. Nd–Cu and La–Cu oxides were co-sputtered on rotating substrates from metallic La, Nd and Cu targets in the presence of a reactive argon–oxygen gas mixture. Structural and chemical features of these films have been determined by X-ray diffraction and energy-dispersive spectroscopy. Their electrical resistivity was measured using the four-point probe method. As-deposited Nd–Cu based coatings are amorphous and, after annealing, crystallise in K$_{2}$NiF$_{4+}$ $_{ δ }$ -type structure for Nd/Cu atomic ratio of 2, with more or less Nd$_{2}$O$_{3}$ or CuO, depending on whether Nd or Cu is in excess, respectively. As-deposited La–Cu based coatings are also amorphous and crystallise in La$_{2}$CuO$_{4}$ for La/Cu >2 or in LaCuO$_{3±δ }$ perovskite-type structure when Cu is in excess. The electrical measurements show a clear relation between resistivity and structure of the coatings. After annealing, crystallised neodymium-based coatings show higher resistivity than lanthanum-based ones. Finally, LaCuO$_{3±δ }$ exhibit higher resistivity than La$_{2}$CuO$_{4}$. |
| Starting Page | 455 |
| Ending Page | 461 |
| Page Count | 7 |
| File Format | |
| ISSN | 09477047 |
| Journal | Ionics |
| Volume Number | 14 |
| Issue Number | 5 |
| e-ISSN | 18620760 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2008-01-14 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Magnetron sputtering La$_{2}$CuO$_{4}$ LaCuO$_{3}$ Nd$_{2}$CuO$_{4}$ Cathode material IT-SOFC Condensed Matter Optical and Electronic Materials Renewable Energy Sources Electrochemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Engineering Materials Science Chemical Engineering |
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