NO在Sm_(2-x)Sr_xNiO_4上的催化还原  

The Catalytic Reduction of NO by CO on Sm_(2-x),Sr_xNiO_4

作　　者：楼辉[1] 陈平[1] 鲍筠[1] 葛玉平[1] 马福泰[1] 鲁越青[2] 

机构地区：[1]杭州大学化学系,杭州310028 [2]绍兴师范专科学校生物化学系

出　　处：《高等学校化学学报》1995年第7期1099-1103,共5页Chemical Journal of Chinese Universities

基　　金：浙江省自然科学基金

摘　　要：在具有K_2NiF_4型结构的Sm_(2-x)Sr_xNiO_4(x=0.4,0.5,0.6,0.8,1.0,1.2,1.4,1.5)化合物上进行了CO催化还原NO的研究.结果表明,低温、低Sr^(2+)取代量与高温、高Sr^(2+)取代量的反应途径不同,这可从化合物的结构、化合物中金属一氧键的标准生成焓的总和、NO还原的表观活化能及化合物上O_2的脱附行为等得到解释。The catalytic activity of perovskite series Sm2-xSrxNiO4(x=0. 4, 0.5, 0. 6, 0. 8, 1.0, 1. 2, 1. 4, 1. 5) has been studied for the reduction of NO by CO. The results indicate that the route at low temperature and low degree of substitution of lanthanum by strontium is different from that at high temperature and high degree of Sr2+ substitution, which is closely related to the structure of the compounds, to the sum of the enthalpies of the metal-oxygen bonds in the compounds, to the apparent activation energies for the reduction of NO as well as to the behaviour of oxygen desorption from the compounds.

关 键 词：一氧化氮 一氧化碳 催化 还原 

分 类 号：O613.61[理学—无机化学] O613.71[理学—化学]