Differentiation of chemical reaction activity of various carbon nanotubes using redox potential: classification by physical and chemical structures

Details

• Personal Author:
  Castranova, Vincent ; Endo M ; Kobayashi S ; Matsumoto H ; Porter DW ; Saito N ; Tsuruoka S ; Yanagisawa T
• Description:
  The present study systematically examined the kinetics of a hydroxyl radical scavenging reaction of various carbon nanotubes (CNTs) including double-walled and multi-walled carbon nanotubes (DWCNTs and MWCNTs), and carbon nano peapods (AuCl3@DWCNT). The theoretical model that we recently proposed based on the redox potential of CNTs was used to analyze the experimental results. The reaction kinetics for DWCNTs and thin MWCNTs agreed well with the theoretical model and was consistent with each other. On the other hand, thin and thick MWCNTs behaved differently, which was consistent with the theory. Additionally, surface morphology of CNTs substantially influenced the reaction kinetics, while the doped particles in the center hollow parts of CNTs (AuCl3@DWCNT) shifted the redox potential in a different direction. These findings make it possible to predict the chemical and biological reactivity of CNTs based on the structural and chemical nature and their influence on the redox potential. [Description provided by NIOSH]
• Subjects:
  Chemistry Occupational Health Safety
• Keywords:
  Biological-effects Biological-function Chemical-composition Chemical-properties Chemical-reactions Chemical-structure Kinetics Models Morphology Nanotechnology Physical-properties

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• ISSN:
  0008-6223
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  HELD - Health Effects Laboratory Division
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  302-308
• Volume:
  95
• NIOSHTIC Number:
  nn:20046711
• Citation:
  Carbon 2015 Dec; 95:302-308
• Contact Point Address:
  Shuji Tsuruoka, Aquatic Innovation Center, Shinshu University, 4-17-1 Wakasato, Nagano 380-8553, Japan
• Email:
  Tsuruoka.saitama@gmail.com
• Federal Fiscal Year:
  2016
• NORA Priority Area:
  Manufacturing
• Peer Reviewed:
  True
• Source Full Name:
  Carbon
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7633122505ec819857123fab052e03f33fa4737845cb89222d8902fd7eec19d13a7e8671f9dfa56fb109fe2bea815dcb537f47074c1a773d5782c4990650c6b5
• Download URL:
  https://stacks.cdc.gov/view/cdc/202051/cdc_202051_DS1.pdf
• File Type:
  [PDF - 618.81 KB ]