Publication: Simple introduction of carboxyl head group with alkyl spacer onto multiwalled carbon nanotubes by solution plasma process
Issued Date
2017-01-01
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ISSN
13474065
00214922
00214922
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2-s2.0-85031311635
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Mahidol University
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SCOPUS
Bibliographic Citation
Japanese Journal of Applied Physics. Vol.56, No.9 (2017)
Suggested Citation
Shimpei Nemoto, Tomonaga Ueno, Anyarat Watthanaphanit, Junko Hieda, Maria Antoaneta Bratescu, Nagahiro Saito Simple introduction of carboxyl head group with alkyl spacer onto multiwalled carbon nanotubes by solution plasma process. Japanese Journal of Applied Physics. Vol.56, No.9 (2017). doi:10.7567/JJAP.56.096202 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/42575
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Title
Simple introduction of carboxyl head group with alkyl spacer onto multiwalled carbon nanotubes by solution plasma process
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Abstract
© 2017 The Japan Society of Applied Physics. A simple method of fabricating carboxyl-terminated multiwalled carbon nanotubes (MWCNTs) with alkyl spacers was developed to improve the dispersion quality of MWCNTs in aqueous solutions using solution plasma (SP) in a 6-aminocaproic acid solution. The formation of SP in the solution led to better dispersion of MWCNTs in aqueous solutions. Fourier transform infrared spectroscopy (FT-IR) results indicate that a carboxyl group with an alkyl spacer can be introduced by SP treatment in the 6-aminocaproic acid solution. Sedimentation tests show that the SP-treated MWCNTs in the 6-aminocaproic acid solution retained their good dispersion quality in aqueous solutions of pHs 5 6 and 9. The alkyl spacer plays an important role in the preservation of dispersion states particularly at pH 6.