Abstract
Single-walled carbon nanotubes (CNTs) and double-walled CNTs with a selectivity of 93 % were obtained by means of the novel homemade iron catalysts which were spin coated on silicon wafer. The average diameters of the iron particles prepared from the colloidal solutions containing 30, 40, 50, 60, and 70 mmol/L of iron nitrate were 8.2, 5.1, 20.8, 32.2, and 34.7 nm, respectively, and growing thin-walled CNTs with the average diameters of 4.1, 2.2, 9.2, 11.1, and 18.1 nm, respectively. The diameters of the CNTs were correlated with the geometric sizes of the pre-growth catalyst particles. Thin-walled CNTs were found to have a catalyst mean diameter-to-CNT average diameter ratio of 2.31. Iron carbide was formed after the growth of CNTs, and it is believed that during the growth of CNTs, carbon source decomposed and deposited on the surface of catalyst, followed by the diffusion of surface carbon into the iron catalyst particles, resulting in carbon supersaturation state before the growth of CNTs.
Similar content being viewed by others
References
Amama PB, Maschmann MR, Fisher TS, Sands TD (2006) Dendrimer-templated Fe nanoparticles for the growth of single-wall carbon nanotubes by plasma-enhanced CVD. J Phys Chem B 110(22):10636–10644
Amama PB, Pint CL, McJilton L, Kim SM, Stach EA, Murray PT, Hauge RH, Maruyama B (2009) Role of water in super growth of single-walled carbon nanotube carpets. Nano Lett 9(1):44–49
Bennett RD, Xiong GY, Ren ZF, Cohen RE (2004) Using block copolymer micellar thin films as templates for the production of catalysts for carbon nanotube growth. Chem Mater 16(26):5589–5595
Bethune DS, Kiang CH, De Vries MS, Gorman G, Savoy R, Vazquez J, Beyers R (1993) Cobalt-catalysed growth of carbon nanotubes with single-atomic-layer walls. Nature 363(6430):605–607
Borowiak-Palen E (2007) Single-walled carbon nanotubes as nanotest tubes. Phys Status Solidi (B) 244(11):4311–4314
Chai S-P, Seah C-M, Mohamed AR (2011) A parametric study of methane decomposition into carbon nanotubes over 8Co–2Mo/Al2O3 catalyst. J Nat Gas Chem 20(1):84–89
Chen B, Wu P (2005) Aligned carbon nanotubes by catalytic decomposition of C2H2 over Ni–Cr alloy. Carbon 43(15):3172–3177
Dresselhaus MS, Dresselhaus G, Saito R, Jorio A (2005) Raman spectroscopy of carbon nanotubes. Phys Rep 409(2):47–99
Esconjauregui S, Whelan CM, Maex K (2009) The reasons why metals catalyze the nucleation and growth of carbon nanotubes and other carbon nanomorphologies. Carbon 47(3):659–669
Fu Q, Huang S, Liu J (2004) Chemical vapor depositions of single-walled carbon nanotubes catalyzed by uniform Fe2O3 nanoclusters synthesized using diblock copolymer micelles. J Phys Chem B 108(20):6124–6129
Hasegawa K, Noda S (2010) Diameter increase in millimeter-tall vertically aligned single-walled carbon nanotubes during growth. Appl Phys Express 3(4):045103
Hofmann S, Sharma R, Ducati C, Du G, Mattevi C, Cepek C, Cantoro M, Pisana S, Parvez A, Cervantes-Sodi F, Ferrari AC, Dunin-Borkowski R, Lizzit S, Petaccia L, Goldoni A, Robertson J (2007) In situ observations of catalyst dynamics during surface-bound carbon nanotube nucleation. Nano Lett 7(3):602–608
Iijima S, Ichihashi T (1993) Single-shell carbon nanotubes of 1-nm diameter. Nature 363(6430):603–605
Jorio A, Saito R, Hafner JH, Lieber CM, Hunter M, McClure T, Dresselhaus G, Dresselhaus MS (2001) Structural (n, m) determination of isolated single-wall carbon nanotubes by resonant Raman scattering. Phys Rev Lett 86(6):1118
Kanzow H, Ding A (1999) Formation mechanism of single-wall carbon nanotubes on liquid–metal particles. Phys Rev B 60(15):11180
Kojima C, Kono K, Maruyama K, Takagishi T (2000) Synthesis of polyamidoamine dendrimers having poly(ethylene glycol) grafts and their ability to encapsulate anticancer drugs. Bioconjug Chem 11(6):910–917
Kukovitsky EF, L’Vov SG, Sainov NA, Shustov VA, Chernozatonskii LA (2002) Correlation between metal catalyst particle size and carbon nanotube growth. Chem Phys Lett 355(5–6):497–503
LeMieux MC, Roberts M, Barman S, Jin YW, Kim JM, Bao Z (2008) Self-sorted, aligned nanotube networks for thin-film transistors. Science 321(5885):101–104
Moghimi SM, Hunter AC, Murray JC (2001) Long-circulating and target-specific nanoparticles: theory to practice. Pharmacol Rev 53(2):283–318
Murakami Y, Miyauchi Y, Chiashi S, Maruyama S (2003a) Direct synthesis of high-quality single-walled carbon nanotubes on silicon and quartz substrates. Chem Phys Lett 377(1–2):49–54
Murakami Y, Yamakita S, Okubo T, Maruyama S (2003b) Single-walled carbon nanotubes catalytically grown from mesoporous silica thin film. Chem Phys Lett 375(3–4):393–398
Nasibulin AG, Pikhitsa PV, Jiang H, Kauppinen EI (2005) Correlation between catalyst particle and single-walled carbon nanotube diameters. Carbon 43(11):2251–2257
Pan C, Liu Y, Cao F, Wang J, Ren Y (2004) Synthesis and growth mechanism of carbon nanotubes and nanofibers from ethanol flames. Micron 35(6):461–468
Parshetti GK, Doong R (2009) Dechlorination of trichloroethylene by Ni/Fe nanoparticles immobilized in PEG/PVDF and PEG/nylon 66 membranes. Water Res 43(12):3086–3094
Seah C-M, Chai S-P, Mohamed AR (2011) Synthesis of aligned carbon nanotubes. Carbon 49(14):4613–4635
Seah C-M, Chai S-P, Ichikawa S, Mohamed AR (2012) Synthesis of single-walled carbon nanotubes over a spin-coated Fe catalyst in an ethanol-PEG colloidal solution. Carbon 50:960–967
Wu Z, Chen Z, Du X, Logan JM, Sippel J, Nikolou M, Kamaras K, Reynolds JR, Tanner DB, Hebard AF, Rinzler AG (2004) Transparent, conductive carbon nanotube films. Science 305(5688):1273–1276
Yoshida H, Takeda S, Uchiyama T, Kohno H, Homma Y (2008) Atomic-scale in situ observation of carbon nanotube growth from solid state iron carbide nanoparticles. Nano Lett 8(7):2082–2086
Zhang XX, Li ZQ, Wen GH, Fung KK, Chen J, Li Y (2001) Microstructure and growth of bamboo-shaped carbon nanotubes. Chem Phys Lett 333(6):509–514
Acknowledgments
The authors gratefully acknowledge the financial support provided by the Universiti Sains Malaysia (USM Fellowship), Fundamental Research Grant Scheme (FRGS), the Long Term Research Scheme (LRGS) and APEX DE 2012. The authors would like to thank Prof. Tadashi Itoh from Osaka University for allowing the authors to use HR-TEM.
Author information
Authors and Affiliations
Corresponding author
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Seah, CM., Chai, SP., Ichikawa, S. et al. Growth of uniform thin-walled carbon nanotubes with spin-coated Fe catalyst and the correlation between the pre-growth catalyst size and the nanotube diameter. J Nanopart Res 15, 1371 (2013). https://doi.org/10.1007/s11051-012-1371-x
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s11051-012-1371-x