Preparation of homogeneously dispersed and highly concentrated double-walled carbon nanotubes as catalyst support

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• 作者：Ming-Mao Li ; Zi-Ping Wu ; Man Zhao ; Wei-Bo Zhang ; Ying-Yan Hu ; Yan-Hong Yin
• 关键词：Double ; walled carbon nanotubes ; Catalyst support ; Pt/DWCNT catalysts ; Ultrasonication
• 刊名：Rare Metals
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：35
• 期：4
• 页码：337-343
• 全文大小：1,420 KB
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• 作者单位：Ming-Mao Li (1)
  Zi-Ping Wu (1)
  Man Zhao (1)
  Wei-Bo Zhang (1)
  Ying-Yan Hu (1)
  Yan-Hong Yin (1)
  
  1. Engineering Research Institute, Jiangxi University of Science and Technology, Ganzhou, 341000, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Metallic Materials
  Chinese Library of Science
  
• 出版者：Journal Publishing Center of University of Science and Technology Beijing, in co-publication with Sp
• ISSN：1867-7185

文摘

In this study, double-walled carbon nanotubes (DWCNTs) in ethylene glycol (EG) and N,N-dimethylformamide (DMF) media were investigated by a simple ultrasonication method. Homogeneously dispersed and highly concentrated DWCNTs are in EG (95 vol%) and DMF (5 vol%) media without the addition of surfactant. Surface structure and crystallinity of DWCNTs undergo minimal change. The highly concentrated dispersion state of DWCNTs helps in Pt loading. Pt particles prepared in the homogenous dispersion system have small sizes and are uniformly distributed. The prepared Pt catalysts display a similar electrochemical activity to catalysts prepared in EG system with low concentration. The results demonstrate that homogenously dispersed and highly concentrated DWCNTs can realize mass production of Pt/DWCNT catalysts with high electrochemical activity and low cost.