Structure and properties of cerium zirconium mixed oxide prepared under different precipitate aging processes
作者： Qi WANG , Mei YUE , Qiang ZHONG , Meisheng CUI , Xiaowei HUANG
DOI: 10.1016/S1002-0721(16)60081-9
关键词:
摘要: Abstract Oriented attachment and Ostwald ripening are two aging mechanisms of precipitation particles which may result in different crystallization mechanism precipitates during the process. In this work, effects process on structure properties cerium zirconium mixed oxides were investigated. The results indicated that 11.48% CeO 2 phase 88.52% Ce 0.26 Zr 0.62 (LaPr) 0.12 O solid solution obtained under oriented rod-like coexisted with spherical phase, improved surface area (64 m /g) pore volume (0.32 mL/g) after 1000 °C 4 h thermal treatment. However, through controlling process, 0.35 0.55 0.10 homogenous was generated by exhibiting higher oxygen storage capacity (501 µmol H consumption per gram (1378.3 /g).
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