Size-controlled Gold Nanocolloids on Polymer Microsphere-stabilizer via Interaction Between Functional Group and Gold Atoms
writer：Wei Liu, Xinlin Yang*, Lei Xie
keywords：Interaction between metallic nanocolloids and functional group, Microsphere-stabilized gold nanocolloids
source：期刊
specific source：J. Colloid Interface Sci., 313 (2), 493-502 (2007). DOI: 10.1016/j.jcis.2007.04.055
Issue time：2007年
Gold nanocolloids with the controlled diameter ranging from 5.2 to 10.7 nm were in situ prepared by reduction of gold chloride trihydrate with sodium borohydride as reductant via the interaction between the gold naocolloids and the functional groups on the surface of polymer microspherestabilizer. The nature of such interaction was studied in detail by X-ray photoelectron spectroscopy (XPS). The effect of the functional groups on the catalytic activity of the gold nanocolloids was preliminarily investigated with the reduction of 4-nitrophenol to 4-aminophenol in the presence of sodium borohydride as reductant.