• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >Comparative study on purity evaluation of singlewall carbon nanotubes
【24h】

Comparative study on purity evaluation of singlewall carbon nanotubes

机译：单壁碳纳米管纯度评估的比较研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Here we present a comparative study on Raman spectroscopy and optical absorption spectroscopy (OAS) as two main techniques being used for the purity evaluation of singlewall carbon nanotubes (SWCNT). The raw material was produced by the standard laser ablation technique using cobalt and nickel as catalysts (40 wt.% SWCNT). The presence of impurities influences the measurement of the properties of the carbon nanotubes. Therefore, the systematic purification study and its comparative estimation using the above mentioned characterization tools are presented. In order to reduce the catalyst particles content the diluted aqua regia was applied. In order to eliminate the amorphous carbon and fullerenes (unwanted forms of carbon) the high temperature annealing was used. The measurements were performed in suspension (dimethylformamide (DMF)) and on thin film deposited on potassium bromide crystal. This gave additional information about the effect of the sample preparation technique sensitivity on the purity of SWCNT evaluation.
机译：在这里，我们介绍了拉曼光谱和光学吸收光谱（OAS）的比较研究，这是用于评估单壁碳纳米管（SWCNT）纯度的两种主要技术。通过标准的激光烧蚀技术，使用钴和镍作为催化剂（40 wt。％SWCNT）生产原材料。杂质的存在影响碳纳米管的性能的测量。因此，提出了使用上述表征工具进行的系统纯化研究及其比较估算。为了减少催化剂颗粒的含量，使用了稀释的王水。为了消除无定形碳和富勒烯（碳的有害形式），使用了高温退火。测量是在悬浮液（二甲基甲酰胺（DMF））中和沉积在溴化钾晶体上的薄膜上进行的。这提供了有关样品制备技术灵敏度对SWCNT评估纯度的影响的其他信息。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号