Single-Atom Alloy Formation via Reaction-Driven Catalyst Restructuring,Journal of the American Chemical Society

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Single-Atom Alloy Formation via Reaction-Driven Catalyst Restructuring
Journal of the American Chemical Society ( IF 14.4 ) Pub Date : 2024-07-22 , DOI: 10.1021/jacs.4c05980
Georgios Giannakakis ₁ , Yogita Soni ₁ , Gregory L Novotny ₁ , Zhaoru Zha ₁ , Nicole J Libretto ₂ , Yanliu Dang ₃ , Steven L Suib _{3,

4} , Jeffrey T Miller ₂ , E Charles H Sykes ₅ , Prashant Deshlahra ₁

Affiliation

We demonstrate that single-atom alloy catalysts can be made by exposing physical mixtures of monometallic supported Cu and Pd catalysts to vinyl acetate (VA) synthesis reaction conditions. This reaction induces the formation of mobile clusters of metal diacetate species that drive extensive metal nanoparticle restructuring, leading to atomic dispersion of the precious metal, smaller nanoparticle sizes than the parent catalysts, and high activity and selectivity for both VA synthesis and ethanol dehydrogenation reactions. This approach is scalable and appears to be generalizable to other alloy catalysts.

中文翻译：

通过反应驱动催化剂重组形成单原子合金

我们证明，可以通过将单金属负载的铜和钯催化剂的物理混合物暴露于醋酸乙烯酯（VA）合成反应条件来制备单原子合金催化剂。该反应诱导形成金属二乙酸盐物质的移动簇，从而驱动广泛的金属纳米颗粒重组，从而导致贵金属的原子分散、比母体催化剂更小的纳米颗粒尺寸以及VA合成和乙醇脱氢反应的高活性和选择性。这种方法具有可扩展性，并且似乎可以推广到其他合金催化剂。

更新日期：2024-07-22

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