铜
催化作用
介孔二氧化硅
纳米颗粒
介孔材料
金属
选择性
微波辐射
微波食品加热
微波化学
化学
材料科学
无机化学
核化学
有机化学
纳米技术
物理
量子力学
作者
Kenta Yoshida,Camino González‐Arellano,Rafael Luque,Pratibha L. Gai
标识
DOI:10.1016/j.apcata.2010.02.028
摘要
Highly active and dispersed copper (Cu) nanoparticles on mesoporous silicas have been prepared via microwave irradiation of a solution of copper precursors with a previously synthesized mesoporous hexagonal silica (HMS) support. The protocol allowed differently low-loaded (typically 0.5 wt%) Cu materials containing Cu metal and small quantities of metal oxides. Materials were then tested as catalysts in the hydrogenation of carbonyl compounds under microwave irradiation. Cu materials were found to be highly active, selective and reusable in the reduction of substituted aromatic ketones and aldehydes, providing quantitative conversion of starting material within 5–10 min reaction at mild reaction conditions with complete selectivity to the alcohols.
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