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球磨方式对多壁碳纳米管形貌和结构的影响

Zhen-qiang MENG,Ru-tie LIU,Yong-jun XIONG,Fu-an ZHAO,Xi-bin LI

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals（2012）

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Abstract
对多壁碳纳米管(MWNTs)分别进行干式球磨和湿式球磨,采用TEM、XRD、XPS和Raman光谱等方法分析球磨对MWNTs形貌和结构的影响.结果表明:MWNTs在磨球的冲击作用下产生弯曲、扭结,形成结构缺陷;MWNTs容易在缺陷处断裂,产生大量敞开的断口,这些断口形态可发生转化；与干式球磨比较,湿式球磨后MWNTs的长度较平均,多数端部处于敞开状态,且其结构的损坏程度较小；MWNTs的分散状态及其断口结构的稳定性是影响球磨效果的重要因素.
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Key words
Ball milling,Carbon nanotubes,Dangling bonds,Dispersion
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