Growth of metal carbide nanotubes and nanorods

Chemistry of Materials

Volumn 8, Issue 8, 1996, Pages 2041-2046

  Wong, Eric W ^a   Maynor, Benjamin W ^a   Burns, Luke D ^a   Lieber, Charles M ^a  

^a HARVARD UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000344849     PISSN: 08974756     EISSN: None     Source Type: Journal    
DOI: 10.1021/cm960083b     Document Type: Article

References (26)

1. Ruoff, R. S. Nature 1994, 372, 731.
2. Guerret-Piecourt, C.; Le Bouar, Y.; Loiseau, A.; Pascard, H. Nature 1994, 372, 761.
3. Tsang, S. C.; Chen, Y. K.; Harris, P. J.; Green, M. L. H. Nature 1994, 372, 159.
4. Ajayan P. M.; Iijima, S. Nature 1993, 361, 333.
5. Ajayan, P. M.; Stephan, O.; Redlich, Ph.; Colliex, C. Nature 1995, 375, 564.
6. Seraphin, S.; Zhou, D.; Jial, J.; Whithers, J. C.; Loutfy, R. Nature 1993, 362, 503.
7. Dai, H.; Wong, E. W.; Lu, Y. Z.; Fan, S.; Lieber, C. M. Nature 1995, 375, 769.
8. (a) Mirin, R.; Krishnamurthy, M.; Tan, I.-H.; Bowers, J. E.; Gossard, A. C.; Hu, E. L. J. Cryst. Growth 1993, 127, 881.
9. (b)Shitara, T.; Tornow, M.; Kurtenbach, A.; Weiss, D.; Eberl, K.; v. Klitzing, K. Appl. Phys. Lett. 1995, 66, 2385.
10. (a) Williams, W. D.; Giordano, N. Phys. Rev. B 1986, 33, 8146.
11. (b) Krans, J. M.; van Ruitenbeek, J. M., Fisun, V. V.; Yanson, I. K.; de Jongh, L. J. Nature 1995, 375, 767.
12. Clyne, T. M.; Bader, M. G.; Caplleman, G. R.; Hubert, P. A. J. Mater. Sci. 1985, 20, 85.
13. Cooke, T. F. J. Am. Ceram. Soc. 1991, 74, 2959.
14. Ata. M.; Yamaura, K.; Hudson, A. J. Adv. Mater. 1995, 7, 286.
15. Synder, C. E.; Mandeville, W. H.; Tennent, H. G.; Truesdale, L. K.; Barber, J. J. Int. Patent WO 89/07163, 1989.
16. Ebbesen, T. W.; Ajayan, P. M. Nature 1992, 358, 220.
17. Colbert, D. T.; Zhang, J.; McClure, S. M.; Nikolaev, P.; Chen, Z.; Hafner, J. H.; Owens, D. W.; Kotula, P. G.; Carter, C. B.; Weaver, J. H.; Rinzler, A. G.; Smalley, R. E. Science 1994, 266, 1218.
18. The TEM images of the coatings and solid rods (e.g., Figure 2) show that these samples have a small, randomly oriented grain structure.
19. Storms, E. K. The Refractory Carbides; Academic Press: New York, 1967.
20. 17
21. Iijima, S. MRS Bull. 1994, 19, 43.
22. The final diameter of the solid TiC nanorod is consistent with an estimate based on complete conversion of the carbon nanotube and the bulk density of TiC. This suggests that carbon sources external to the nanotube template do not contribute significantly to the growth of TiC.
23. It is interesting to note that Ti metal coats the entire quartz tube except in the vicinity of the nanotubes. This observation is true until the last stages of the conversion reaction, after which Ti metal is observed on the quartz tube in the vicinity of the product.
24. SAD of a NbC coated sample also shows a weak reflection with a d value of ∼3.34 Å that likely corresponds to the interlayer spacing of the carbon nanotube graphitic shells remaining in this sample.
25. Field-cooled magnetization measurements carried out on bulk NbC nanorod samples show diamagnetism below ∼9 K. The diamagnetic signal corresponds to a superconducting fraction of 70%.
26. Schafer, H. Angew. Chem., Intl. Ed., Engl. 1971, 10, 43.