This title appears in the Scientific Report :
2016
Please use the identifier:
http://hdl.handle.net/2128/12215 in citations.
Pr$_x$Ce$_ {1-x}$O$_{2-\delta}$ as a functional material for SOCs
Pr$_x$Ce$_ {1-x}$O$_{2-\delta}$ as a functional material for SOCs
Solid oxide cells (SOCs) offer the possibility to reversibly convert fuel (such as H2 or CH4 gas) into electricity (fuel cells) or electricity into fuel (electrolyzers). Gadolinium-doped ceria (GDC) is currently used as a Sr-diffusion barrier in state-of-the-art anode supported cells (ASC), and is i...
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Personal Name(s): | Lenser, Christian (Corresponding author) |
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Gunkel, Felix / Menzler, Norbert H. / Guillon, Olivier | |
Contributing Institute: |
JARA-ENERGY; JARA-ENERGY Elektronische Materialien; PGI-7 Werkstoffsynthese und Herstellungsverfahren; IEK-1 |
Imprint: |
2016
|
Conference: | Gordon Reasearch Conference on Solid State Studies in Ceramics, South Hadley, MA (USA), 2016-07-31 - 2016-08-05 |
Document Type: |
Poster |
Research Program: |
Solid Oxide Fuel Cell Fuel Cells |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Solid oxide cells (SOCs) offer the possibility to reversibly convert fuel (such as H2 or CH4 gas) into electricity (fuel cells) or electricity into fuel (electrolyzers). Gadolinium-doped ceria (GDC) is currently used as a Sr-diffusion barrier in state-of-the-art anode supported cells (ASC), and is investigated as an electrolyte for low-temperature applications. In contrast to GDC, Praseodymium-doped ceria (PCO) is a mixed ionic-electronic conductor (MIEC) in air due to the mixed Pr3+/Pr4+ valence state, and therefore interesting as an active component on the air side of SOCs. It has been suggested from work on model systems that PCO could show a comparable performance to La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF).1 In the present work, we investigate the structural and electrochemical properties of PCO ceramics, as well the performance as an alternate cathode material and Sr-diffusion barrier for the use in SOCs. |