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5. 羰基金属制备N2O催化消除催化剂

羰基金属制备N2O催化消除催化剂

来源 :中国化学会第28届学术年会 | 被引量 : 0次 | 上传用户：ASINLU

【摘 要】

：

N2O 是主要的温室气体之一,它在对流层中具有破坏臭氧的作用；因此,N2O 的消除越来越引起人们的重视.N2O 的直接催化分解是公认的消除N2O 污染的最有前景的方法之一,具有操作简单、成本低、不需引入其它杂质、不产生二次污染等特点.N2O 催化分解催化剂主要分为三类：金属氧化物及复合氧化物催化剂、金属离子改性分子筛催化剂以及负载型催化剂[1-2].在这里,我们分别选用Al2O3 和MgO 为载体

【作 者】

：

李孟丽 杨晓龙 唐立平 熊绪茂 胡斌 

【机 构】

：

中国科学院兰州化学物理研究所,兰州 730000;中国科学院研究生院,北京 100039 中国科学

【出 处】

：

中国化学会第28届学术年会

【发表日期】

：

2012年10期

【关键词】

：

氧化亚氮 钌催化剂 催化分解 前驱体 还原态 

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论文部分内容阅读

　　N2O 是主要的温室气体之一,它在对流层中具有破坏臭氧的作用；因此,N2O 的消除越来越引起人们的重视.N2O 的直接催化分解是公认的消除N2O 污染的最有前景的方法之一,具有操作简单、成本低、不需引入其它杂质、不产生二次污染等特点.N2O 催化分解催化剂主要分为三类：金属氧化物及复合氧化物催化剂、金属离子改性分子筛催化剂以及负载型催化剂[1-2].在这里,我们分别选用Al2O3 和MgO 为载体,以羰基钌为催化剂活性前躯体用浸渍法制备不同含量的钌基催化剂.考察活性组分负载量以及载体对催化剂活性的影响.从下图可知：在制备的系列催化剂中,Ru-9％-MgO和Ru-3％-Al2O3 催化剂的活性相对较高；还原态的钌基催化剂活性较高.

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