Ni/MWCNT-Supported Palladium Nanoparticles as Magnetic Catalysts for Selective Oxidation of Benzyl Alcohol

作者：Zhang, Mingmei; Sun, Qian; Yan, Zaoxue; Jing, Junjie; Wei, Wei; Jiang, Deli; Xie, Jimin^*; Chen, Min

来源：Australian Journal of Chemistry, 2013, 66(5): 564-571.

DOI：10.1071/CH12484

• CARBON NANOTUBES
• SHELL NANOPARTICLES
• AU NANOPARTICLES
• OXYGEN-REDUCTION
• PD
• GOLD
• ELECTROCATALYSTS
• ELECTROOXIDATION
• HYDROGENATION
• NANOWIRES

Well dispersed Pd@Ni bimetallic nanoparticles on multi-walled carbon nanotubes (Pd@Ni/MWCNT) are prepared and used as catalysts for the oxidation of benzyl alcohol. Scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy analysis, and X-ray diffraction were performed to characterise the synthesised catalyst. The results show a uniform dispersion of Pd@Ni nanoparticles on MWCNT with an average particle size of 4.0 nm. The as synthesised catalyst was applied to the oxidation of benzyl alcohol. A 99% conversion of benzyl alcohol and a 98% selectivity of benzaldehyde were achieved by using the Pd@Ni/MWCNT (Pd: 0.2 mmol) catalyst with water as a solvent and H2O2 as oxidant at 80 degrees C. The catalytic activity of Pd@Ni/MWCNT towards benzyl alcohol is higher than that of a Pd/MWCNT catalyst at the same Pd loadings. The catalyst can be easily separated due to its magnetic properties.

• 出版日期2013
• 单位江苏大学