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zj2412

铜虫 (初入文坛)

[交流] 【求助】碳纳米管溶解性问题 已有9人参与

各位大侠,你们好!
       我最近处理单壁碳纳米管,混酸超声24小时后再用去离子水清洗干净,用酒精清洗,再干燥就结块了,研磨后用的时候发现溶解性不是很理想,是什么原因啊?要研磨到什么程度?能不能防止结块?
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charley86577

至尊木虫 (职业作家)


小木虫(金币+0.5):给个红包,谢谢回帖交流
我觉得可以参考一下这篇文章
Title:Mild Hydrothermal Treatment to Prepare Highly Dispersed Multi-walled Carbon Nanotubes

水热法做CNT的改性,我想对SWNT也能适用,此文的方法也还算比较简单。

abstract:
Multi-walled carbon nanotubes (MWCNTs) with improved dispersion property have been prepared by a mild and fast hydrothermal treatment. The hydrothermal process avoids using harsh oxidants and organic solvents, which is environmental friendly and greatly decreases the damage to intrinsic structure of MWCNTs. The modified MWCNTs were highly soluble in polar solvents such as water, ethanol and dimethylformamide. Morphological observation by TEM indicated that the diameter and inherent structure were well reserved in modified MWCNTs. X-ray photoelectron spectroscopy and Raman spectroscopy were used to quantify functional groups created on the MWCNT surface, and to determine rational parameters of hydrothermal process.

[ Last edited by charley86577 on 2010-9-21 at 09:07 ]
keepeyesontheclouds,keepfeetfirmlyontheground
8楼2010-09-21 08:02:49
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李少杰

金虫 (著名写手)

没做过,不知道,让高人来吧
2楼2010-09-15 19:51:47
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ilove619

新虫 (小有名气)


小木虫(金币+0.5):给个红包,谢谢回帖交流
我最近也在做CNTs的分散性改散,建议你用酸纯化后,再用Fenton试剂(H2O2:FeSO4=5:1)超声处理两小时。不过我也在试验阶段,效果也不是很理想。热盼高人
Canyoudigit?
3楼2010-09-17 23:37:30
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sounique

禁虫 (正式写手)

★ ★
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nuaajsh(金币+1):鼓励交流 2010-09-18 09:44:37
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4楼2010-09-18 09:13:11
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