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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
- 748 - 752 (5page)
이용수
초록· 키워드
CexZr1-xO2 (x = 1, 0.7, 0.4, 0.2, 0) solid solution powders were successfully synthesized by a modified sol-gel method using a simple metal nitrate precursors as sources for cerium and zirconium which do not contain any hazardous and explosive precursor materials. X-ray diffraction (XRD) and Raman spectroscopy analyses revealed the formation of a solid solution depending on the ratio of the two oxides. In the modified sol-gel method, the composition range of the solid solution was wider than that from other methods. When the content of ZrO2 in the compound of CexZr1-xO2 was increased, the crystal structures were maintained as the cubic fluorite structures up to 60mol% of ZrO2 and the cubic phase was still predominant upto 80 mol% of ZrO2. A decrease in the crystallite size and an increase in the BET surface area were observed along with an increase of the Zr content in CexZr1-xO2 solid solutions. The powder morphologies were also investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis.
#Ceria-zirconia
#Ceria-zirconia
#Solid solution
#Solid solution
#Raman Spectroscopy
#Raman Spectroscopy
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