Effect of CeO2 morphologies on toluene catalytic combustion
Effect of CeO2 morphologies on toluene catalytic combustion
复制标题
CeO2形貌对甲苯催化燃烧的影响
DOI：
10.1016/j.cattod.2018.06.039
复制
发表时间：
2019-07-15
期刊：
影响因子：
5.3
通讯作者：
Ye, Daiqi
中科院分区：
文献类型：
--
作者：
Feng, Zhentao;Ren, Quanming;Ye, Daiqi
催化燃烧是一种高效、经济的脱除甲苯的技术，CeO2在这类反应中表现出很好的性能。本工作制备了三种不同形貌的CeO2催化剂(棒状、空心球和立方体)，并比较了它们对甲苯催化燃烧的性能。结果表明，CeO2-HS对甲苯降解具有最好的催化活性。在207℃时，甲苯转化率可达90%，这是因为CeO2-HS催化剂具有最大的比表面积和最多的氧空位，这是甲苯催化氧化的关键。CeO2-HS还表现出很好的催化剂稳定性、重复使用性和优异的耐水性。
Catalytic combustion is an efficient and economic technology to eliminate toluene, and CeO2 shows very good performance in this kind of reactions. In this work, three kinds of CeO2 catalysts with different morphologies (rod, hollow sphere and cube) have been prepared, and there performances for toluene catalytic combustion were compared. It is found that CeO2-HS shows the best catalytic activities for toluene degradation. Toluene conversion could get 90% at 207 degrees C. That's because CeO2-HS catalyst have largest surface area and most oxygen vacancies, which are vital for toluene catalytic oxidation. CeO2-HS also shows very good catalyst stability, reusability and excellent tolerance to water.