期刊
CATALYSIS TODAY
卷 320, 期 -, 页码 40-50出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2017.12.035
关键词
Perovskite; Three-way catalysis; Oxygen storage capacity; Flame spray pyrolysis; Gasoline after-treatment
资金
- European Union 7th Framework Programme [280890]
We have used liquid-feed Flame Spray Pyrolysis (FSP) to prepare a series of high surface area, nanocrystalline perovskites of general formula AA'BB'O-3 (A= La, A'= Ca, Sr, Y, Ce; B= B'= Mn, Fe, Co, Ni). Use of the FSP method has allowed the systematic investigation of changing both A site dopant and B site cation while maintaining high surface areas. The resulting perovskites have been evaluated for their CO, HC and NO (threeway catalyst (TWC)) activity under simulated gasoline exhaust feeds, their oxygen storage properties and their stability to high temperature redox conditions. The activity of the perovskites has been compared to a low loaded commercial PdRh TWC and were found to be significantly poorer after mild calcination and very significantly deactivated after high temperature hydrothermal redox ageing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据