Prasad, D. Hari Lee, Jong-Ho Lee, Hae-Weon Kim, Byung-Kook Park, Jong-Sung 2024-01-20T20:05:08Z 2024-01-20T20:05:08Z 2021-09-04 2009-12 1229-9162 https://pubs.kist.re.kr/handle/201004/131930 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. English KOREAN ASSOC CRYSTAL GROWTH, INC X-RAY-DIFFRACTION NANOSTRUCTURED CERIA REDUCTION BEHAVIOR THERMAL-STABILITY REDOX BEHAVIOR CATALYSTS ZIRCONIA METHANE OXIDE SPECTROSCOPY Chemical synthesis and characterization of CexZr1-xO2 powders by a modified sol-gel method Article 1 JOURNAL OF CERAMIC PROCESSING RESEARCH, v.10, no.6, pp.748 - 752 JOURNAL OF CERAMIC PROCESSING RESEARCH 10 6 748 752 scie scopus kci ART001547176 000273774800008 2-s2.0-76549109728 Materials Science, Ceramics Materials Science Article X-RAY-DIFFRACTION NANOSTRUCTURED CERIA REDUCTION BEHAVIOR THERMAL-STABILITY REDOX BEHAVIOR CATALYSTS ZIRCONIA METHANE OXIDE SPECTROSCOPY Ceria-zirconia Solid solution Raman Spectroscopy