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首页> 外文期刊>Catalysis science & technology >Water-soluble NHC-stabilized platinum nanoparticles as recoverable catalysts for hydrogenation in water
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Water-soluble NHC-stabilized platinum nanoparticles as recoverable catalysts for hydrogenation in water

机译：水溶性NHC-stabilized铂纳米粒子作为可回收的催化剂加氢在水中

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摘要

The production of water-soluble and stable metallic nanoparticles that can act as recoverable catalysts still remains a challenge. Herein we report the behavior of a series of water-soluble platinum nanoparticles containing different sulfonated NHC ligands as recoverable catalysts for the hydrogenation of aromatic compounds in pure water. The NHC-protected nanoparticles are found to be active and, in general, can be reutilized with no loss of activity or selectivity, although differences are observed depending on the substitution of the NHC ligand or on the substrate being hydrogenated. Pt leaching was determined to be only 0.03-0.29%. TEM images reveal that the shape of the nanoparticles remains unaltered after catalysis. However, the size of the particles increased, although with no influence on their catalytic properties in many instances.
机译：水溶性和稳定的生产金属纳米粒子可以作为可回收的催化剂仍然是一个挑战。我们在此报告的一系列的行为含有水溶性铂纳米颗粒不同的磺化NHC配体可恢复加氢催化剂的芳香化合物在纯水。纳米粒子被发现是活跃的,一般情况下,可以以不流血的方式处理活动或选择性,尽管差异观察根据国家飓风中心的替代配体或被氢化的衬底上。浸出决心只有0.03 - -0.29%。TEM照片显示的形状纳米粒子催化后依然没有改变。然而,粒子的大小增加,虽然没有影响他们的催化在许多情况下属性。

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