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| Home > Publications database > Electronic conductivity of Ce(0.8)Gd(0.2-x)Pr(x)O(2-delta) and influence of added CoO > print |
| 001 | 14093 | ||
| 005 | 20240708132816.0 | ||
| 024 | 7 | _ | |2 DOI |a 10.1002/pssb.201046365 |
| 024 | 7 | _ | |2 WOS |a WOS:000287715600006 |
| 024 | 7 | _ | |2 ISSN |a 0370-1972 |
| 037 | _ | _ | |a PreJuSER-14093 |
| 041 | _ | _ | |a eng |
| 082 | _ | _ | |a 530 |
| 084 | _ | _ | |2 WoS |a Physics, Condensed Matter |
| 100 | 1 | _ | |a Schmale, K. |b 0 |0 P:(DE-HGF)0 |
| 245 | _ | _ | |a Electronic conductivity of Ce(0.8)Gd(0.2-x)Pr(x)O(2-delta) and influence of added CoO |
| 260 | _ | _ | |c 2011 |a Weinheim |b Wiley-VCH |
| 295 | 1 | 0 | |a Article first published online: 7 OCT 2010 |
| 300 | _ | _ | |a 314 - 322 |
| 336 | 7 | _ | |a Journal Article |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a article |2 DRIVER |
| 440 | _ | 0 | |a PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS |x 0370-1972 |0 4914 |y 2 |v 248 |
| 500 | _ | _ | |a The authors would like to thank the German Federal Ministry of Economics and Technology (BMWi) for founding in course of the MEM-OXYCOAL project. We also thank Dr. Lutz Kogel for his engaged contribution to the experimental setup and for developing the applied software packages. This article will be part of the dissertation of Kerstin Schmale. |
| 520 | _ | _ | |a Doped ceria and ceria based solid oxide solutions show a unique combination of oxygen ion mobility, electronic conductivity, and high catalytic activity for redox reactions. In this work, the minority conductivity of electrons has been measured directly as a function of the composition of ceria-praseodymia based solid solutions in order to maximize the electronic conductivity without depressing the oxygen ion mobility. The influence of Co as well as the Gd/Pr dopant ratio on the electronic conductivity of ceria-praseodymia pellets was studied for the compositions Ce0.8Gd0.2-xPrxO2-delta (0.05 <= x <= 0.15) with and without an additional Co content of 0.02 with respect to the formula. The Hebb-Wagner polarization technique was used with ion-blocking microcontacts. In the temperature range 700-800 degrees C, the presence of high amounts of praseodymium increases the p-type conductivity by a factor of more than 10 for oxygen partial pressures higher than 10(-10) bar. Co-doped ceria-gadolinia-praseodyinia solid solutions showed a further increase of the electronic conductivities in a partial pressure range where the Co-free materials showed the minimum of the electronic conductivities. It is assumed that the effect of the additional cobalt doping is due to electronic short circuits along the grain boundaries via segregated CoO. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim |
| 536 | _ | _ | |a Rationelle Energieumwandlung |c P12 |2 G:(DE-HGF) |0 G:(DE-Juel1)FUEK402 |x 0 |
| 588 | _ | _ | |a Dataset connected to Web of Science |
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| 653 | 2 | 0 | |2 Author |a cerium oxide |
| 653 | 2 | 0 | |2 Author |a electronic conductivity |
| 653 | 2 | 0 | |2 Author |a Hebb-Wagner technique |
| 653 | 2 | 0 | |2 Author |a praseodymium oxide |
| 700 | 1 | _ | |a Grünebaum, M. |b 1 |0 P:(DE-HGF)0 |
| 700 | 1 | _ | |a Janssen, M. |b 2 |0 P:(DE-HGF)0 |
| 700 | 1 | _ | |a Baumann, S. |b 3 |u FZJ |0 P:(DE-Juel1)129587 |
| 700 | 1 | _ | |a Schulze-Küppers, F. |b 4 |u FZJ |0 P:(DE-Juel1)129660 |
| 700 | 1 | _ | |a Wiemhöfer, H.-D. |b 5 |0 P:(DE-HGF)0 |
| 773 | _ | _ | |0 PERI:(DE-600)1481096-7 |a 10.1002/pssb.201046365 |g Vol. 248, p. 314 - 322 |p 314 - 322 |q 248<314 - 322 |t Physica status solidi / B |v 248 |x 0370-1972 |y 2011 |
| 856 | 7 | _ | |u http://dx.doi.org/10.1002/pssb.201046365 |
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| 914 | 1 | _ | |y 2011 |
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