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首页> 外文期刊>Nanotechnology >Fabrication of water-dispersible single-walled carbon nanotube powder using N-methylmorpholine N-oxide
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Fabrication of water-dispersible single-walled carbon nanotube powder using N-methylmorpholine N-oxide

机译：使用N-甲基丙酮N-氧化物制备水分散的单壁碳纳米管粉

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Dispersion of nanocarbon materials in liquid media, via solution processing such as spraying, printing, spinning, etc. is one of the prerequisites for practical applications. Here we report that water-dispersible single-walled carbon nanotubes (SWCNTs) were prepared through successive treatments with chlorosulfuric acid (CSA)/H2O2 and N-methylmorpholine N-oxide (NMO) monohydrate. The powder of the CSA/H2O2- and NMO-treated SWCNTs (N-SWCNTs) could be readily redispersed in water in concentrations as high as 1 g l(-1) without requiring a dispersant. The mechanism responsible for the high dispersity of the N-SWCNT powder in polar solvents, including water, was elucidated based on the high polarity of the NMO molecule. In order to highlight the wide applicability of the N-SWCNTs, they were used successfully to prepare conducting thin films by spray-coating plastic substrates with an aqueous hybrid solution containing the N-SWCNTs and Ag nanowires (NWs). In addition, a flexible, large-area thin-film heater was prepared based on the N-SWCNT/AgNW hybrid film with a transmittance of 93% and sheet resistance of 30 Omega sq(-1).
机译：纳米碳材料在液体介质中的分散体，经由溶液处理，如喷雾，印刷，旋涂，等是先决条件在实际应用中的一个。这里，我们报告，水可分散的单壁碳纳米管（单壁碳纳米管）通过与氯磺酸（CSA）/ H 2 O 2和N-甲基吗啉N-氧化物（NMO）一水合物连续处理制备。所述CSA / H 2 O 2和NMO处理的单壁碳纳米管（N-单壁碳纳米管）的粉末可以无需分散剂可容易地再分散于水中的浓度高达1克升（-1）。基于所述NMO分子的高极性负责在极性溶剂中，包括水的N SWCNT粉末的分散性高的机构，被阐明。为了突出在N SWCNT的适用性广，它们被成功地用于制备导电薄膜的喷涂塑料基材与含有的N-单壁碳纳米管和银纳米线（NWS）的水溶液混合溶液。此外，柔性的，大面积的薄膜加热器是基于93％的透射率和30欧米茄平方（-1）的薄层电阻的N SWCNT /的AgNW混合膜上制备。

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