Journal
CATALYSIS LETTERS
Volume 144, Issue 6, Pages 1001-1008Publisher
SPRINGER
DOI: 10.1007/s10562-014-1224-6
Keywords
Bimetallic catalysts; Gold catalysis; p-Nitrophenol
Categories
Funding
- China Zhejiang Provincial Natural Science Foundation [Y4110116]
- Ministry of Science and Technology of China [2012DFA40550]
- National Natural Science Foundation [11375091]
- Natural Science Foundation of Ningbo [2011A610171]
- National Natural Science Foundation of China [21007011, 21177028]
- Ph.D. Programs Foundation of the Ministry of Education in China [20100071120012]
- Overseas Returnees Start-Up Research Fund of the Ministry of Education in China
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Bimetallic Au3M (M = Ni, Co, Fe) nanoparticles (NPs) were synthesized by reducing a mixture of Au3+ and metal cations (Ni2+, Co2+, Fe3+) by butyllithium in the presence of oleylamine. Au3M NPs were then deposited onto a commercial SiO2 support. The Au3M/SiO2 samples were not particularly active in the catalytic reduction of p-nitrophenol unless they were converted into Au-MO (x) /SiO2 after appropriate thermal treatment in air. The Au-MO (x) /SiO2 catalysts showed good thermal stability and significantly higher p-nitrophenol conversions than Au/SiO2. Relevant characterization was conducted employing X-ray diffraction, transmission electron microscopy, Fourier-transform infrared spectroscopy, and ultraviolet-visible spectroscopy.
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