期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 14, 期 11, 页码 8771-8776出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2014.9955
关键词
Catalysis; Mesoporous; Carbon Spheres; Pd Nanoparticles; Polyaromatic; Reduction
类别
资金
- Basic Science Research Program through the National Research Foundation of Korea - Ministry of Education [2012R1A1A2041315]
- Fusion Research Program for Green Technologies through the National Research Foundation of Korea - Ministry of Education [2012M3C1A1054502]
- BK21 PLUS Program
Two kinds of polyaromatics with mesoporous have been synthesized from aromatic hydrocarbons using anhydrous zinc chloride as the Friedel-Crafts catalyst and chloromethyl methyl ether as a cross-linker, after the Pd nanoparticles (PdNPs) decorated on the mesoporous carbon spheres (Pd@CSs) have been prepared by simply mixing the as-prepared polyaromatics (polynaphthalene or polypyrene) with PdCl2, reducing the Pd2+ to Pd-0 by using NaBH4, followed by thermal treatment at 600 degrees C for 5 h in nitrogen atmosphere. The synthesized PdNPs have a uniform size distribution with an average size smaller than 15 nm and they can be loaded on the highly mesoporous carbon microspheres. Structural of the resulting Pd@CSs were carried out using FE-SEM, HR-TEM, X-ray differaction, dispersive X-ray spectroscopy. The resulting Pd@CSs have been investigated as a catalyst for the reduction of 4-nitrophenol to 4-aminophenol, showing the Pd@CSs have high catalytic reactivity and recyclability.
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