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카복실산으로 표면개질된 다중층 탄소나노튜브의 구조분석

Structural Analysis of Carboxylic Acid-functionalized Multi-walled Carbon Nanotubes

  • 김정수 (동의대학교 나노공학과) ;
  • 이건웅 (한국전기연구원 CNT 전극 전문연구랩) ;
  • 오원태 (동의대학교 나노공학과)
  • 발행 : 2007.10.01

초록

Carboxylated multi-walled carbon nanotubes (MWNTs) were in detail characterized by XRD, XPS, FTIR, and thermogravimetric measurements. Carboxylic acid groups were functionalized to MWNTs under aqueous acid condition. The changes of sonication and reflux conditions rarely influenced the degree of carboxylation on MWNTs, but decreased the thermal stability of the resultant carboxylated MWNTs. XRD results showed that the diffraction peaks (100), (101), and (102) of pristine MWNTs disappeared after acid treatment, but the diffraction peak (002) was Preserved in the carboxylated MWNTs. The introduction of carboxylic acid groups on MWNTs caused to improve the dispersibility of the resultant carboxylated MWNTs in water.

참고문헌

  1. Q. Cao, S.-H. Hur, Z.-T. Zhu, Y. Sun, C. Wang, M. A. Meitl, M. Shim, and J. A. Rogers, 'Highly bendable, transparent thin-film transistors that use carbon-nanotube-based conductors and semiconductors with elastomeric dielectrics', Adv. Mater., Vol. 18, p. 304, 2006 https://doi.org/10.1002/adma.200501740
  2. H. E. Unalan, G. Fanchini, A. Kanwal, A. D. Pasquier, and M. Chhowalla, 'Design criteria for transparent single-wall carbon nanotube thin-film transistors', Nano Lett., Vol. 6, p. 677, 2006 https://doi.org/10.1021/nl052406l
  3. Z. Wu, Z. Chen, X. Du, J. M. Logan, J. Sippel, M. Nikolou, K. Kamaras, J. R. Reynolds, D. B. Tanner, A. F. Hebard, and A. G. Rinzler, 'Transparent, conductive carbon nanotube films', Science, Vol. 305, p. 1273, 2004 https://doi.org/10.1126/science.1101243
  4. S. S. Fan, M. G. Chapline, N. R. Fanklin, T. W. Tombler, A. M. Cassell, and H. J. Dai, 'Self-oriented regular arrays of carbon nanotubes and their field emission properties', Science, Vol. 283, p. 512, 1999 https://doi.org/10.1126/science.283.5401.512
  5. A. Cao, H. Zhu, X. Zhang, X. Li, B. Wei, C. Xu, J. Liang, and D. Wu, 'Hydrogen storage of dense-aligned carbon nanotubes', Chem. Phys. Lett., Vol. 342, p. 510, 2001 https://doi.org/10.1016/S0009-2614(01)00619-4
  6. H. W. Chen, R. J. Wu, K. H. Chan, Y. L. Sun, and P. G. Su, 'The application of CNT/Nafion composite material to low humidity sensing measurement', Sens. Actuators B, Vol. 104, p. 80, 2004 https://doi.org/10.1016/j.snb.2004.04.105
  7. A. Thess, R. Lee, P. Nikolaev, H. J. Dai, P. Petit, J. Robert, C. H. Xu, Y. H. Lee, S. G. Kim, A. G. Rinzler, D. T. Colbert, G. E. Scuseria, D. Tomanek, J. E. Fischer, and R. E. Smalley, 'Crystalline ropes of metallic carbon nanotubes', Science, Vol. 273, p. 483, 1996 https://doi.org/10.1126/science.273.5274.483
  8. A. Hirsch, 'Functionalization of single-walled carbon nanotubes', Angew. Chem. Int. Ed., Vol. 41, p. 1853, 2002 https://doi.org/10.1002/1521-3773(20020603)41:11<1853::AID-ANIE1853>3.0.CO;2-N
  9. C. A. Dyke and J. M. Tour, 'Overcoming the insolubility of carbon nanotubes through high degrees of sidewall functionalization', Chem. Eur. J., Vol. 10, p. 812, 2004 https://doi.org/10.1002/chem.200305534
  10. D. Tasis, N. Tagmatarchis, V. Georgakilas, and M. Prato, 'Soluble carbon nanotubes', Chem. Eur. J., Vol. 9, p. 4000, 2003 https://doi.org/10.1002/chem.200304800
  11. G.-W. Lee and S. Kumar, 'Dispersion of nitric acid-treated SWNTs in organic solvents and solvent mixtures', J. Phys. Chem. B, Vol. 109, p. 17128, 2005 https://doi.org/10.1021/jp052943u
  12. J. Chen, M. A. Hamon, H. Hu, Y. Chen, A. M. Rao, P. C. Eklund, and R. C. Haddon, 'Solution properties of single-walled carbon nanotubes', Science, Vol. 282, p. 95, 1998 https://doi.org/10.1126/science.282.5386.95
  13. D. Reznik, C. H. Olk, D. A. Neumann, and J. R. D. Copley, 'X-ray powder diffraction from carbon nanotubes and nanoparticles', Phys. Rev. B, Vol. 52, p. 116, 1995 https://doi.org/10.1103/PhysRevB.52.116
  14. Y. Maniwa, R. Fujiwara, H. Kira, H. Tou, E. Nishibori, M. Takata, M. Sakata, A. Fujiwara, X. Zhao, S. Iijima, and Y. Ando, 'Multiwalled carbon nanotubes grown in hydrogen atmosphere: An x-ray diffraction study', Phys. Rev. B, Vol. 64, p. 73105, 2001 https://doi.org/10.1103/PhysRevB.64.073105
  15. F. Y. Wu and H. M. Cheng, 'Structure and thermal expansion of multi-walled carbon nanotubes before and after high temperature treatment', J. Phys. D: Appl. Phys., Vol. 38, p. 4302, 2005 https://doi.org/10.1088/0022-3727/38/24/006