文献类型：专利

英文题名：Cerium-zirconium-bismuth oxide compound used as oxygen storing material for three-functional catalyst of automobile exhaust gas, is prepared by oxidation and co-precipitation processes

作者：ZHANG Z;WANG L;LIU X;LU G;WANG J;GUO Y;WANG Y;LI Y;ZHAN W

机构：[1]UNIV EAST CHINA SCI&TECHNOLOGY

申请号：CN101804342-B

公开日：2012-10-10

语种：英文

收录：DERWENT

摘要：NOVELTY - A cerium-zirconium-bismuth oxide is prepared by oxidation and co-precipitation processes, where main raw material is cerium oxide, zirconium oxide and bismuth oxide. USE - Cerium-zirconium-bismuth oxide compound used as oxygen storing material for three-functional catalyst of automobile exhaust gas. ADVANTAGE - The cerium-zirconium-bismuth oxide compound ensures improved oxygen storing performance and heat resistance, and can be prepared in a simple manner. DETAILED DESCRIPTION - A cerium-zirconium-bismuth oxide compound is prepared by oxidation and co-precipitation processes, where main raw material is cerium oxide, zirconium oxide and bismuth oxide. The oxide compound has general formula (I) Ce1-x-yZrxBiyO2-a. x=0.15-0.30; y=0.05-0.30; a=undefined; and 1-x-y=0.40-0.70.