稀土对甲醇车尾气净化银催化剂性能影响的研究
Effects of Rare Earth on Methanol Fuel Exhaust Deep Oxidation over Ag Catalyst作者机构：华东理工大学工业催化研究所上海200237
出 版 物：《高等学校化学学报》 (Chemical Journal of Chinese Universities)
年 卷 期：2000年第21卷第9期
页 面：1470-1472页
核心收录：
学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学]
基 金：上海市高等学校青年教师学术基金!(批准号 :96JG0 50 51)资助
摘 要：The performance of deep oxidation of methanol on supported Ag catalysts was examined by a chromatograph-micro-reactor. The research results showed that La and/or Ce added into γ-alumina support affected greatly the activity and selectivity of methanol oxidation on Ag catalyst. La could lower light-off temperature of methanol oxidation and decreased the content of intermediate containing oxygen, but at low temperature HCOOCH3 formed. Ce had an unfavorable role. The addition of La and Ce into catalyst could cause the effects of these elements to offset. By XPS technique, it was showed that La and Ce could change the chemical valence of Ag inversely, which corresponded to the modifications of catalytic performance.
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