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Experimental and theoretical study of lean nitrogen oxides reduction and nitric oxide decomposition using SUZ-4 zeolite.

机译:SUZ-4沸石精益氮氧化物还原和一氧化氮分解的实验和理论研究。

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Transition metal containing zeolites are known to have good hydrocarbon lean NOx reduction activity. In this study, copper ion exchanged SUZ-4 zeolite has been tested under simulated lean NOx conditions to find out its activity. Many parameters have been varied so as to study their effects on the catalytic activity. Raman studies have been carried out on different transition metal ion exchanged SUZ-4s and band assignments have been made. 1-Propanamine has been used as a probe to detect Bronsted acid sites. Finally, theoretical studies have been carried out using SPARTAN 02 on NO adsorbed on small zeolite clusters. A mechanism for NO decomposition has also been proposed from these simulations.
机译:已知含过渡金属的沸石具有良好的贫烃NO x还原活性。在这项研究中,铜离子交换的SUZ-4沸石已经在模拟稀薄NOx条件下进行了测试,以发现其活性。为了研究它们对催化活性的影响,已经改变了许多参数。已经对不同的过渡金属离子交换的SUZ-4s进行了拉曼研究,并进行了谱带分配。 1-丙胺已用作检测布朗斯台德酸位点的探针。最后,使用SPARTAN 02对吸附在小分子团簇上的NO进行了理论研究。这些模拟也提出了NO分解的机理。

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