In situ source-template-interface reaction route to hollow ZrO(2) microspheres with mesoporous shells.
Hollow ZrO(2) microspheres with mesoporous shells have been synthesized by a novel hydrothermal reaction of zirconium oxychloride in the presence of urea, hydrochloric acid, and ethanol. The morphology and shell thickness of the hollow microspheres can be controlled by varying synthesis conditions. After calcination at high temperature, the morphologies of the hollow microspheres are essentially preserved. Pt catalyst supported on the hollow calcined ZrO(2) microspheres exhibits more excellent catalytic performance in CO oxidation than those on ZrO(2) powders derived from conventional precipitation methods.
Lin
Feng-Qiang
FQ
Key Laboratory of Applied Surface and Colloid Chemistry (Shaanxi Normal University), Ministry of Education, and School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an 710062, China.
Dong
Wen-Sheng
WS
Liu
Chun-Ling
CL
Liu
Zhaotie
Z
Li
Mengyuan
M