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심준형,차석원,Turgut M. Gur,Fritz B. Prinz 한국세라믹학회 2006 한국세라믹학회지 Vol.43 No.12
Recently, a new type of solid oxide fuel cells has been developed employing extremely thin oxide electrolyte. These fuel cells are expected to operate at significantly reduced temperature compared to conventional solid oxide fuel cells. Accordingly, they may resolve the stability and material selection issues of high temperature fuel cells. Furthermore, they may eliminate the limitations of o polymer membrane fuel cells whose operation temperature is under 100 C. In this paper, we review the electrolytes for intermediate temperature operation. Then, we discuss the current development of thin film solid oxide fuel cells that possibly operated at low temperatures.
Shim, Joon-H.,Cha, Suk-Won,Gur, Turgut M.,Prinz Fritz B. 한국세라믹학회 2006 한국세라믹학회지 Vol.43 No.12
Recently, a new type of solid oxide fuel cells has been developed employing extremely thin oxide electrolyte. These fuel cells are expected to operate at significantly reduced temperature compared to conventional solid oxide fuel cells. Accordingly, they may resolve the stability and material selection issues of high temperature fuel cells. Furthermore, they may eliminate the limitations of polymer membrane fuel cells whose operation temperature is under $100^{\circ}C$. In this paper, we review the electrolytes for intermediate temperature operation. Then, we discuss the current development of thin film solid oxide fuel cells that possibly operated at low temperatures.
An, Ji-Hwan,Kim, Young-Beom,Jung, Hee-Joon,Park, Joong-Sun,Cha, Suk-Won,Gur, Turgut M.,Prinz, Fritz B. 한국정밀공학회 2012 International Journal of Precision Engineering and Vol.13 No.7
High resolution characterization of materials for solid oxide fuel cells (SOFCs) have drawn attention in recent years due in part by advances made in instrumentation that enable in situ characterization during device operation. Transmission electron microscopy (TEM) and advanced techniques such as energy dispersive X-ray spectroscopy (EDS) and electron energy loss spectroscopy (EELS) have been widely used to characterize SOFC electrolytes, e.g. doped zirconia and doped ceria, in nanometer to atomic scale resolution. TEM and associated diffraction patterns enable the high resolution analysis of crystal structure of electrolyte at the nanoscale, while EDS and EELS are utilized to characterize their chemical composition in sub-nanometer scale. This paper reviews the use of these techniques for SOFC electrolyte characterization and presents new possibilities for SOFC materials research enabled by the introduction of recently developed technologies such as aberration-corrected or environmental TEM.