کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1524118 | 1511824 | 2012 | 7 صفحه PDF | دانلود رایگان |
The assembly of nanoparticles onto carbon nanotubes has exhibited intriguing properties for various applications. Recent researches on preparation of carbon nanotubes based hybrids usually involve a heavy oxidation, usually yielding excessive structure defects. Here, a facile soft oxidation route was developed to fabricate carbon nanotubes (CNTs) supported Ag2O nanoparticles. The hydrolysis of metal nitrate in aqueous solution in the presence of N-methyl-2-pyrrolidone can produce metal oxide, H+ and NO3−, and the as-produced species of NO3− and H+ can react with carbon atoms of CNTs, forming oxygen-containing functional groups on the surfaces. These functional groups then can serve as the anchors and eventually form the CNTs–Ag2O hybrids, where the CNTs backbones in the hybrids have a characteristically low defect density. The microstructures of Ag2O nanoparticles on CNTs can be controlled, providing a pathway for tailoring their optical and electrochemical performances.
► We develop a facile soft oxidation route capable of assembling Ag2O nanoparticles on CNTs surfaces.
► The CNTs backbones in the hybrids have a characteristically low defect density.
► The cumbersome and costly surface modification of SWNTs in advance are needless.
► The microstructures of Ag2O nanoparticles on CNTs can be effectively controlled.
Journal: Materials Chemistry and Physics - Volume 136, Issues 2–3, 15 October 2012, Pages 666–672