Melt infiltration (MI) has been described as an effective way to disperse transition metals (TM) in ordered mesoporous supports. The alternative method described here is based on the infiltration of molten precursors into the support pores in the presence of a support polymer porogen. The resulting materials contain metal oxide particles (metallic particles after reduction) smaller than 2 nm, dispersed within the support micropores, which prove to be stable upon reduction up to 900 °C and to exhibit improved catalytic performances for the hydrogenation of cinnamaldehyde due to the high fraction of the active metal exposed.

中文翻译：

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通过聚合物辅助熔体渗透法改善过渡金属在中孔材料中的分散性

熔体渗透（MI）已被描述为将过渡金属（TM）分散在有序介孔载体中的有效方法。本文所述的替代方法基于在载体聚合物成孔剂存在下熔融前体向载体孔中的渗透。所得材料包含小于2 nm的金属氧化物颗粒（还原后的金属颗粒），分散在载体微孔中，事实证明在还原至900°C时该氧化物是稳定的，并由于肉桂醛的氢化而显示出改进的肉桂醛加氢催化性能。暴露出高比例的活性金属。