One-step microwave synthesis of palladium–carbon nanotube hybrids with improved catalytic performance

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• 作者：Manuela Cano ; Ana Benito ; Wolfgang K. Maser ; Esteban P. Urriolabeitia
• 刊名：Carbon
• 出版年：2011
• 出版时间：February 2011
• 年：2011
• 卷：49
• 期：2
• 页码：652-658
• 全文大小：426 K

文摘

A fast and easy one-step linker-free approach for the synthesis of palladium nanoparticle/multiwall carbon nanotube (Pd-NP/MWCNT) hybrid materials is described using microwave irradiation for the effective decomposition of Pd₂dba₃ complex in the presence of MWCNTs. High loadings of Pd nanoparticles (up to 40 wt. % ) having sizes between 3 and 5 nm are deposited on the surface of MWCNTs within a time of only 2 min. The Pd-NP/MWCNT materials serve as efficient catalysts in C–C coupling as well as in hydrogenation reactions, all characterized by high conversion rates using a small amount of catalysts, high turnover frequency values and good recyclability.