화학공학소재연구정보센터
학회 한국재료학회
학술대회 2008년 가을 (11/07 ~ 11/07, 차세대융합기술연구원)
권호 14권 2호
발표분야 에너지환경재료
제목 Fabrication of nickel oxide-yttria stabilized zirconia films by electrostatic spray deposition
초록 The commonly used NiO-YSZ cermet is known to have many desirable properties for use in SOFC anodes, such as high electronic and ionic conductivity, high electrochemical activity, and good microstructural stability. Electrostatic Spray Deposition(ESD) was applied to fabricated a thin-layer of Yttria-Stabilized Zirconia(YSZ) electrolyte on a solid oxide fuel cell(SOFC) anode substrate consisting of Ni-YSZ cermet.  
In this work, a solution of NiO-YSZ(Ni- 8 mol% yttria stabilized zirconia) in methanol was sprayed onto the anode substrate surface at 600-800°C by ESD. After sintering the deposited layer at 1100-1300°C for 5h depending on temperature, analyzed SEM images and XRD data.
A NiO-YSZ composite material was used for the anode, with porosity and pore size, designed to ensure a large enough effective surface area for electrochemical oxidation. The studied deposition parameters were deposition temperature, distance between nozzle and substrate, solution flow rate and DC voltage.
The goal was to obtain porous and continuous 8YSZ coatings by ESD. We have checked the efficiency of this system by SOFC measuring apparatus. Solid Oxide Fuel Cells (SOFCs) are interested as an energy conversion system of future with high efficiency and environmental cleanness. We have checked the efficiency of this system by SOFC measuring apparatus.  


ACKNOWLEDGMENT

This work was supported by the Seoul Research and Business Development Program (Grant No.10583).
저자 장성은, 신동욱, 임종모, 박인유
소속 한양대
키워드 SOFC; anode; esd
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