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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >FTIR Spectroscopic Investigation of Zeolite-Supported Pd-Ag Bimetallic Clusters
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FTIR Spectroscopic Investigation of Zeolite-Supported Pd-Ag Bimetallic Clusters

机译:沸石负载的Pd-Ag双金属簇的FTIR光谱研究

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摘要

The catalytic properties of bimetallic supported metal catalysts depend not only on the type and proportion of the metallic elements but, in an essential way, also on their alloying behavior. Here, CO was used as a probe molecule to test the electronic properties of a PdAg bimetallic catalyst with different Pd/Ag ratios, supported on NaY zeolite. Although CO does not adsorb on Ag°, changes in IR spectra on addition of Ag to Pd samples provide clear evidence that the two metals form a nanoalloy. Furthermore, addition of Ag stabilizes the Pd clusters.
机译:双金属负载的金属催化剂的催化性能不仅取决于金属元素的类型和比例,而且在本质上还取决于它们的合金化行为。在这里,CO被用作探针分子以测试负载在NaY沸石上的具有不同Pd / Ag比的PdAg双金属催化剂的电子性能。尽管CO不会吸附在Ag°上,但是将Ag添加到Pd样品中后红外光谱的变化清楚地证明了这两种金属形成了纳米合金。此外,Ag的添加稳定了Pd簇。

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