کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
45279 | 46407 | 2016 | 7 صفحه PDF | دانلود رایگان |
• N-doped reduced graphene oxide (NRGO) is synthesized in an one-step hydrothermal reaction.
• NRGO is especially adapted for anchoring ultrafine Pd nanoparticles.
• The concentration of doped N results in a significant variation of Pd morphology.
• Pd/NRGO is highly selective for the activation of CC or benzene ring.
In this work, N-doped reduced graphene oxides (NRGO) was synthesized via a facile urea-hydrothermal treatment of graphene oxide and used as support for ultrafine Pd nanoparticles (NPs). It was found that N in NRGO can improve the dispersion of Pd NPs. NRGO supported Pd catalyst (Pd/NRGO) is highly active and selective for the hydrogenation of CC bond in cinnamaldehyde and hydrogenation of phenol to cyclohexanone under mild conditions. X-ray diffraction, X-ray photoelectron spectra and transmission electron microscopy characterizations confirmed the interaction between NRGO and Pd enhanced with the amount of N atom in NRGO. Raman spectroscopy of adsorbed cinnamaldehyde on Pd/NRGO suggested that NRGO played a positive role in the selective activation of CC bond in cinnamaldehyde.
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Journal: Applied Catalysis B: Environmental - Volume 180, January 2016, Pages 607–613