The development of improved technologies for biomass processing into transportation fuels and industrial chemicals is hindered due to a lack of efficient catalysts for selective oxygen removal. Here we report that platinum nanoparticles decorated with subnanometer molybdenum clusters can efficiently catalyze hydrodeoxygenation of acetic acid, which serves as a model biomass compound. In contrast with monometallic Mo catalysts that are inactive and monometallic Pt catalysts that have low activities and selectivities, bimetallic Pt-Mo catalysts exhibit synergistic effects with high activities and selectivities. The maximum activity occurs at a Pt to Mo molar ratio of three. Although Mo atoms themselves are catalytically inactive, they serve as preferential binding anchors for oxygen atoms while a catalytic transformation proceeds on neighboring surface Pt atoms. Beyond biomass processing, Pt-Mo nanoparticles are promising catalysts for a wide variety of reactions that require a transformation of molecules with an oxygen atom and, more broadly, in other fields of science and technology that require tuning of surface-oxygen interactions.

中文翻译：

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亚纳米钼簇修饰的催化铂纳米颗粒用于生物质加工。

由于缺乏用于选择性除氧的有效催化剂，阻碍了将生物质加工成运输燃料和工业化学品的改良技术的发展。在这里，我们报道用纳米纳米钼簇装饰的铂纳米颗粒可以有效催化乙酸的加氢脱氧反应，这是一种模型生物质化合物。与惰性的单金属Mo催化剂和活性和选择性低的单金属Pt催化剂相反，双金属Pt-Mo催化剂具有高活性和选择性的协同作用。最大活性发生在Pt与Mo的摩尔比为3的情况下。尽管Mo原子本身是催化惰性的，它们充当氧原子的优先结合锚，而催化转化则在相邻的表面Pt原子上进行。除生物质加工外，Pt-Mo纳米颗粒还有望用于各种反应，这些反应需要将分子与一个氧原子进行转化，更广泛地说，在其他需要调整表面氧相互作用的科学和技术领域。