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锰铜复合催化剂常温催化氧化NO

Keywords: Mn-Cu复合催化剂,常温催化氧化,Cu(OH)Cl

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Abstract:

采用浸渍法,以γA12O3为载体制备了常温下对NO具有良好催化氧化活性的Mn-Cu复合催化剂。系统考察催化剂组分、焙烧温度等与催化剂性能的关系,结果显示200℃干燥所得催化剂的活性最好,催化剂15%Mn-24%Cu/Al2O3在常温下对NO的催化氧化效率达到50%以上。XRD分析表明,催化剂活性组分为Cu(OH)Cl,且随反应时间延长催化性能下降,其物相由Cu(OH)Cl转变为活性较低的Cu2(OH)3Cl相。

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