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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한양대학교 청정에너지연구소 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제10권 제6호
- 발행연도
- 2009.12
- 수록면
- 798 - 802 (5page)
이용수
초록· 키워드
The commonly used NiO-YSZ cermet is known to have many desirable properties for the anode of solid oxide fuel cells
(SOFCs), such as high electronic and ionic conductivity, high electrochemical activity, and good microstructural stability.
When used as an anode of an SOFC, the critical factor determining the performance of the NiO-YSZ composite material is
the porosity and pore size to ensure a large enough effective surface area for electrochemical oxidation. In this study,
electrostatic spray deposition (ESD) was applied to fabricate a porous film of a NiO-YSZ cermet. An ESD system has several
advantages over the conventional thick film process, such as creating a uniform coating for large areas, in expensive and simple
equipment, high synthesis efficiency, fast deposition rate, a diversity of raw materials selection, operation at atmospheric
conditions, and easy control of deposition rate and film thickness. A solution of NiO-YSZ (NiO- 8 mol% yttria stabilized
zirconia) in methanol was sprayed onto the anode substrate surface at 350-500 °C by ESD. The Porosity and microstructure
were controlled by changing the deposition process parameters and the sintering temperature. The deposition parameters
studied were substrate temperature, distance between nozzle and substrate, deposition time and DC voltage.
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