Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 1, Issue 1, Pages 181-186Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am8001296
Keywords
sol-gel; functionalization of carbon nanotubes; carbon nanotube-silica composites
Funding
- Ontario Centre of Excellence, Materials and Manufacturing Ontario
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, People's Republic of China
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Single-walled carbon nanotubes (SWNTs) have successfully been incorporated into a silica matrix using the sol-get process. The SWNTs were first functionalized with 3-aminopropyltriethoxysilane (APTES) through an amide linkage formed between the carboxylic acid groups already present on their surface and the amino group on APTES. The silane moieties were then used to form silica with and without the presence of tetramethylorthosilicate (TMOS) in a sol-gel reaction. The addition of TMOS was found to influence the molecular arrangement of the SWNT in the silica matrix and also to retard the degradation of the silica-SWNT composite.
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