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以共沉淀法制得的水滑石类化合物为催化剂前体,经焙烧可得到一系列尖晶石类化合物Co-M-Al[M=Cr,Mn,Fe,Ni,Cu;n(Co):n(M):n(Al)=3:1:1].通过XRD,比表面测定,化学分析,NO吸附等方法对其进行表征,测定了此系列催化剂对NO催化还原和催化分解的活性,结果发现此系列催化剂对消除NO具有很高的活性.同时对催化消除NO的机理及过渡金属离子中d轨道电子对催化活性的影响进行了一些探讨.
A series of spinel compounds Co-M-Al [M = Cr, Mn, Fe, Ni, Cu; n (Co): n (M): n (Al) = 3: 1: 1] .This catalyst was characterized by XRD, specific surface analysis, chemical analysis and NO adsorption. The activity of this series of catalysts for the catalytic reduction and catalytic decomposition of NO was determined. The results showed that this series of catalysts have high activity for the elimination of NO, and discussed the mechanism of catalytic elimination of NO and the influence of d orbital electrons on the catalytic activity of transition metal ions.