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Single step synthesis of mesoporous nio-CE0.8SM0.2O2-δ composite anode for low-temperature SOFC
KTH, School of Information and Communication Technology (ICT), Material Physics (Closed 20120101), Functional Materials, FNM (Closed 20120101).
KTH, School of Information and Communication Technology (ICT), Material Physics (Closed 20120101), Functional Materials, FNM (Closed 20120101).
KTH, School of Information and Communication Technology (ICT), Material Physics (Closed 20120101), Functional Materials, FNM (Closed 20120101).
KTH, School of Information and Communication Technology (ICT), Material Physics (Closed 20120101), Functional Materials, FNM (Closed 20120101).
2011 (English)In: EFC 2011 - Proceedings of the 4th European Fuel Cell Piero Lunghi Conference and Exhibition, 2011, 293-294 p.Conference paper, Published paper (Refereed)
Abstract [en]

The performance of the CeO2-based composite anodes depends on microstructural features such as particle size, tripe phase boundaries (TPB), surface area, and percolation. To improve the performance of anode, i.e. to enlarge TPB, anode materials with both porous structure and phase homogeneity of metal and ceramic are preferred. In the present study, we developed a novel onestep template-, surfactant-free synthesis route for mesoporous CE0.8SM0.2O2-δ composite anode by homogeneous precipitation of precursor in aqueous solutions followed by calcination. The composite anode sample was characterized by thermogravimetry analysis, X-ray diffraction, SEM, BET, etc. The refinement of the XRD data indicated that the composite sample synthesized by the process called "one step synthesis" produced smaller crystallite size in comparison to the sample attained by the two steps process. Fuel cells have been constructed using as-prepared composite as anodes and lithiated NiO as cathode based on the SDCcarbonate composite electrolyte. Simple preliminary performance tests were done with single cells in which such I-V curves indicated that the cell with one step anode had better performance.

Place, publisher, year, edition, pages
2011. 293-294 p.
Keyword [en]
Anodes, Crystallite size, Electrodes, Fuel cells, Microstructural evolution, Particle size, Solvents, Temperature, Thermogravimetric analysis, X ray diffraction, Better performance, Homogeneous Precipitation, Microstructural features, One step synthesis, Phase homogeneity, Sdc-carbonate composites, Single-step synthesis, Thermogravimetry analysis, Solid oxide fuel cells (SOFC)
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:kth:diva-167655Scopus ID: 2-s2.0-84923630108ISBN: 9788882862541 (print)OAI: oai:DiVA.org:kth-167655DiVA: diva2:816842
Conference
4th European Fuel Cell Piero Lunghi Conference and Exhibition, EFC 2011, Rome, Italy, 14-16 December 2011
Note

QC 20150604

Available from: 2015-06-04 Created: 2015-05-22 Last updated: 2015-06-04Bibliographically approved

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