Synthesis of Carbon Nanotubes from Silicalite-1-Coated Substrates

Abstract:

Assembled monolayer of silicalite-1 (AMS) microcrystals on Si wafer for carbon nanotube (CNT) growth has been prepared by the rubbing method. Iron oxide (α-Fe2O3, hematite) catalyst films were deposited onto silicate-1 monolayers from a Fe2O3 target by radio frequency (rf)-sputtering. This approach has the potential for producing well-aligned CNTs with controlled diameter from predesigned silicalite-1 templates by catalytic chemical vapor deposition (CCVD). Silicalite-1 monolayer oriented with faces parallel to Si wafer showed only the planes in the forms {0 k 0} lines at (020), (040), (060), (080) and (0100) by XRD. The formation and growth of CNTs by CCVD were achieved on the pores of silicate-1 crystals whereby the pores can be defined as confined spaces (channels, 5.60 Å) in nanometer dimensions acting as a template for a fine dispersion of well-defined Fe2O3 (10-15 nm) particles.

• Periodical: Key Engineering Materials (Volumes 512-515)
• Pages: 275-279
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.512-515.275
• Online since: June 2012
• Authors: Wei Zhao, Ashish Pokhrel, Hyun Sung Kim, Hyung Tae Kim, Ik Jin Kim
• Keywords: Assembled Monolayer, Carbon Nanotube (CN), Catalytic Chemical Vapor Deposition (CCVD), Fe₂O₃, Silicalite-1

References

[1] C. Yu, L. Shi, Z. Yao, D. Li, and A. Majumdar, Thermal Conductance and Thermopower of an Individual Single-Wall Carbon Nanotube, Nano Lett. 5(2005)1842-1846.

DOI: 10.1021/nl051044e

[2] M. Fuhrer, H. Park, and P. L. McEuen, Single-walled carbon nanotube electronics, IEEE Trans.Nanaotechnol.1(2002) 78-85.

DOI: 10.1109/tnano.2002.1005429

[3] J. Li, Q. Ye, A. Cassell, H. T. Ng, R. Stevens, and J. Han, Bottom-up approach for carbon nanotubes interconnects, Appl. Phys. Lett. 82(2003) 2491-2493.

DOI: 10.1063/1.1566791

[4] J. K. Holt, H. G. Park, Y. Wang, et al., Fast Mass Transport Through Sub-2-Nanometer Carbon Nanotubes, Science 312(2006) 1034-1037.

DOI: 10.1126/science.1126298

[5] Y. J. Jung, S. Kar, S.Talapatra, et al., Aligned Carbon Nanotube−Polymer Hybrid Architectures for Diverse Flexible Electronic Applications, Nano Lett. 6(2006)413-418.

DOI: 10.1021/nl052238x

[6] T. W. Ebbesen and P. M. Ajayan, Large-scale synthesis of carbon nanotubes, Nature 358(1992) 220-222.

DOI: 10.1038/358220a0

[7] T. Guo, P. Nikolaev, A. G. Rinzler, D. Tomanek, D. T. Colbert, and R. E. Smallery, Self-Assembly of Tubular Fullerenes, J. Phys. Chem. 99(1995) 10694-10697.

DOI: 10.1021/j100027a002

[8] M. Endo, K. Takeuchi, K. Kobori, K. Takahashi, H. W. Kroto, and A. Sarkar, Pyrolytic carbon nanotubes from vapor-grown carbon fibers, Carbon 33(1995) 873-881.

DOI: 10.1016/0008-6223(95)00016-7

[9] H. Ago, S. Imamura, T. Okazaki, et al., CVD Growth of single-walled carbon nanotubes with narrow diameter distribution over Fe/MgO catalyst and their fluorescence spectroscopy, J. Phys. Chem. B 109(2005) 10035-10041.

DOI: 10.1021/jp050307q

[10] N. T. Alvarez, A. Orbaek, A. R. Barron, et al., Dendrimer-assisted self-assembled monolayer of iron nanoparticles for vertical array carbon nanotube growth, Appl. Mater. Interf. 2(2010) 15-18.

DOI: 10.1021/am900666w

[11] A. Okamoto, H. Shinohara,Control of diameter distribution of single-walled carbon nanotubes using the zeolite-CCVD method at atmospheric pressure, Carbon43(2005)431-436.

DOI: 10.1016/j.carbon.2004.10.006

[12] I. J. Kim, W. Zhao, X. Fan, et al., Effect of the TEOS/Al(i-pro)3mol ratio in the composition on the crystal morphology of zeolites, Journal of Ceramic Research and Processing 11(2010) 158-163.

[13] S. Karakoulia, L. Jankovic, K. Dimos, D. Gournis, and K. triadafyllidis, Formation of carbon nanotubes on iron/cobat-modified zeolites: Effect of zeolite framework/pore structure and method of modification, Stud. Surf.Sci. Catal. 158(2005)391-398.

DOI: 10.1016/s0167-2991(05)80364-7

[14] J. S. Lee, J. H. Kim, Y. J. Lee, N. C. Jeong, and K. B. Yoon, Manual Assembly of Microcrystal Monolayers on Substrates, Angew. Chem. Int. 46(2007)3087-3090.

DOI: 10.1002/anie.200604367

[15] K. B. Yoon,Organization of Zeolite Microcrystals for Production of Functional Materials, Acc. Chem. Res. 40(2007)29-40.

DOI: 10.1021/ar000119c

[16] S. Yasuda, D. N. Futaba, T. Yamada, et al., Improved and Large Area Single-Walled Carbon Nanotube Forest Growth by Controlling the Gas Flow direction, ACS Nano 3(2009) 4164-4170.

DOI: 10.1021/nn9007302

[17] L. D. Shao, G. Tobias, C. G. Salzmann, et al., Removal of amorphous carbon for the efficient sidewall functionalization of single-walled carbon nanotubes, Chem. Commun.(2007)5090-5092.

DOI: 10.1039/b712614j

[18] A. C. Ferrari and J. Robertson, Resonant Raman spectroscopy of disordered, amorphous, and diamondlike carbon, Phys. Rev. B 64(2001) 075414(1-13).

DOI: 10.1103/physrevb.64.075414

[19] A. C. Ferrari and J. Robertson, Origin of the 1150-cm-1 Raman mode in nanocrystalline diamond, Phys. Rev. B63(2001) 121405(1-4).