甲醇燃料车尾气净化催化剂的研究Ⅰ.氧含量对钯催化剂上甲醇低温深度氧化性能的影响  

STUDY ON CATALYSTS FOR METHANOL FUELED VEHICLE EXHAUST CONTROL Ⅰ. Influence of Oxygen Content on Methanol Deep Oxidation over Pd/ γ Al 2O 3

作　　者：朱兵[1] 汪仁[1] 

机构地区：[1]华东理工大学工业催化研究所

出　　处：《催化学报》1997年第5期414-417,共4页

基　　金：国家教委博士点基金

摘　　要：甲醇燃料车尾气净化催化剂的研究Ⅰ．氧含量对钯催化剂上甲醇低温深度氧化性能的影响朱兵汪仁（华东理工大学工业催化研究所，上海２００２３７）关键词甲醇燃料，汽车尾气，深度氧化，钯催化剂，氧含量甲醇作为车用汽油代用燃料已在美国、日本、德国等发达工业国家...The mechanism of the influence of oxygen content on methanol deep oxidation over Pd/ γ Al 2O 3 has been studied by the techniques of in situ XRD and XPS. It was found that when palladium exists in reductive state on the support, the methanol oxidation activity and deep oxidation selectivity increase with increasing oxygen content. The activity and selectivity decrease when the amount of oxygen increases to an extent that results in palladium transfer from reduction state to oxidation state, it is the reason that the phenomenon of oxygen inhibition arises. Methanol is easier to be oxidized to formaldehyde over Pd O.

关 键 词：甲醇燃料 汽车尾气 深度氧化 钯催化剂 尾气净化 

分 类 号：X511.05[环境科学与工程—环境工程] O643.36[理学—物理化学]