期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 10, 期 11, 页码 2437-2443出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201500290
关键词
arenes; gold; nanoparticles; reduction; sensors
资金
- Ministerio de Ciencia e Innovacion (MICINN) of Spain [CTQ2009-07881, CTQ2011-22649, CSD2007-00006]
- Ministerio de Economia y Competitividad (MINECO) of Spain [CTQ2013-46705-R, CTQ2014-51912-REDC]
- MEC, Spain [RYC-2006-001425]
- DURSI-Generalitat de Catalunya [SGR2009-1441, SGR2014-1105, SGR2014-1192]
- China Scholarship Council (CSC)
Water-soluble gold nanoparticles (Au NPs) stabilized by a nitrogen-rich poly(ethylene glycol) (PEG)-tagged substrate have been prepared by reduction of HAuCl4 with NaBH4 in water at room temperature. The morphology and size of the nanoparticles can be controlled by simply varying the gold/stabilizer ratio. The nanoparticles have been fully characterized by TEM, high-resolution (HR) TEM, electron diffraction (ED), energy-dispersive X-ray spectroscopy (EDS), UV/Vis, powder XRD, and elemental analysis. The material is efficient as a recyclable catalyst for the selective reduction of nitroarenes with NaBH4 to yield the corresponding anilines in water at room temperature. Furthermore, the potential ability of the Au NPs as a refractive index sensor owing to their localized surface plasmon resonance (LSPR) effect has also been assessed.
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