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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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富氧条件下co/mor催化剂上甲烷选择催化还原no
, PP. 1106-1112
Keywords: 氮氧化物,甲烷,选择性催化还原,钴氧化物,丝光沸石
Abstract:
？采用浸渍法制备了一系列用于甲烷选择催化还原(ch4-scr)氮氧化物的co/mor催化剂。采用xrd、bet、tg-ms、h2-tpr、nh3-tpd和no-tpd等手段对催化剂进行表征,并对其在甲烷选择催化还原氮氧化物反应中的活性进行评价。结果表明,钴物种以co3o4尖晶石形态存在于co/mor催化剂中;与mor载体相比,引入钴物种后,催化剂的酸性、氧化还原能力和对no的吸脱附能力均发生了变化。在甲烷选择催化还原氮氧化物反应中,co/mor的催化活性与其氧化还原性能和对no的吸脱附性能直接相关;其中,co负载量为10%的co(10)/mor催化剂的ch4-scr脱硝活性最好,在330℃下no的转化率达54.2%。
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