Abstract

Peculiarities of the formation of the phase composition of alumina-supported copper molybdate catalysts and their reactivity in the soot oxidation model reaction have been studied. Catalysts have been prepared by incipient wetness impregnation with aqueous solutions of precursors of the supported components, while varying the order of introduction of the components and their molar ratio and content. The catalysts have been studied by XRD, UV-vis DR spectroscopy, and H₂-TPR. It has been shown that the phase composition of the supported samples and, as a consequence, their catalytic activity are significantly affected by the order of introduction of the supported components due to their interaction with the support.

中文翻译：

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用于烟尘燃烧的氧化铝负载钼酸铜催化剂中活性组分形成的特性

摘要

已经研究了氧化铝负载的钼酸铜催化剂的相组成形成的特性及其在烟灰氧化模型反应中的反应性。催化剂已经通过用负载组分的前体的水溶液进行初湿浸渍来制备，同时改变组分的引入顺序及其摩尔比和含量。通过XRD、UV-vis DR光谱和H ₂ -TPR对催化剂进行了研究。已经表明，由于负载组分与载体的相互作用，负载样品的相组成及其催化活性受到负载组分引入顺序的显着影响。