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Preparation and Characterization of Mesoporous Ce 0.5 Zr 0.5 O 2 Mixed Oxide
Author(s) -
FENG ShengSheng,
GU YingYing,
LI JinLin,
SONG FengXuan
Publication year - 2007
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200790276
Subject(s) - chemistry , calcination , sodium dodecylbenzenesulfonate , mesoporous material , thermal stability , specific surface area , oxide , transmission electron microscopy , pulmonary surfactant , fluorite , mixed oxide , adsorption , desorption , inorganic chemistry , chemical engineering , nuclear chemistry , organic chemistry , catalysis , biochemistry , engineering
Mesoporous (MSU) Ce 0.5 Zr 0.5 O 2 mixed oxide with a high specific surface area has been synthesized under weak acidic condition in the presence of an anionic surfactant, sodium dodecylbenzenesulfonate. The effect of the pH value on the formation of mesostructure and the thermal stability of the material has been evaluated. The products were characterized by transmission electron microscopy, powder X‐ray diffraction and nitrogen adsorption‐desorption measurements. The results showed that the as‐prepared Ce 0.5 Zr 0.5 O 2 mixed oxide possessed a specific surface area of 163.3 m 2 ·g −1 , which had a cubic fluorite‐type structure and possessed specific surface areas of 148.4 and 62.4 m 2 ·g −1 after calcination at 500 and 800 °C for 2 h, respectively. The material showed excellent thermal stability.