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New generation or universal fuel cell system? R&D for intermediate temperature solid oxide fuel cells (ITSOFCs)
KTH, Superseded Departments, Chemical Engineering and Technology.
2001 (English)In: Journal of New Materials for Electrochemical Systems, ISSN 1480-2422, Vol. 4, no 4, 239-251 p.Article in journal (Refereed) Published
Abstract [en]

Present challenges forfuel cell (FC) commercialisation are related to the material and system limitations, delaying the FC market. Most intensive interests currently for the FCs are concentrated on the polymer electroyte fuel cells (PEFCs) and solid oxide fuel cells (SOFCs). Due to the material constraint the SOFC system has to be operated at high temperature, e.g., 1000 degreesC, resulting in expensive SOFC system and complex technology; while the noble platinum catalyst has to be used for the PEFCs, creating a bottleneck for its commercialisation. In addition, the PEFC system has limited applications due to a shortage of the fuel flexibility, e.g., for hydrocarbon fuels, existing commonly in present fuel infrastructure. There is therefore a need to develop new generation or universal FC system, which can be employed for various applications for both mobile, e.g., electrical vehicles, and stationary, e.g., power generation plant. These request an advanced FC system that should possess of the wide fuel flexibility, i.e., fitting to various present hydrocarbon fiiels, and most importantly, this FC system should be cost-effective and marketable. However the present FC systems themselves alone are difficult to meet these demands due to the, material and system limitations. Our strategy is to develop a new advanced or near universal FC system to combine technological advantage from present FC systems to create a new competitive vis-a-vis FC technology. To realise this strategy a key issue is addressed from the material point of view., This paper thus reviews recent developments/progresses and achievements/applications for R&D on the materials and ITSOFCs, more concerned on the new material-based ITSOFCs.

Place, publisher, year, edition, pages
2001. Vol. 4, no 4, 239-251 p.
Keyword [en]
new generation, intermediate temperature SOFCS, YSZ (yittrium stabilized zirconia), ceria, ceria-composites, oxyegn and proton conduction, liquid fuelled ITSOFCs, dispersed ionic conductors, samaria-doped ceria, ceramic membranes, electrolytes, conductivity, technology, performance, enhancement, zirconia, anode
URN: urn:nbn:se:kth:diva-21196ISI: 000172930200006OAI: diva2:339893
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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