摘要
用 PEG法制备了钙钛矿 La Mn O3 纳米材料 ,并将其负载在涂有γ-Al2 O3的堇青石载体上作为净化尾气的催化剂。用XRD、TEM对产物的结构及表面性能进行了分析。在依维柯汽车上进行了怠速、正常行驶及倒拖时催化剂三效性能的测试。
Nanocrystals of perovskite type rare earth composite metal oxides LaMnO 3 and the support were prepared by the polyethylene glycol sol gel method. The crystal structure? particle size and morphology of the samples were characterized in detail by XRD and TEM. Three way catalytic performance for treating automotive exhaust gas was tested in IVECO bus at the slow speed, normal travel and reverse gear separately. The result showed that the catalytic performance of nanocrystals was obviously better than that prepared by solution impregnation.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2001年第4期148-150,共3页
Environmental Pollution & Control
基金
江苏省科委基金资助项目
