Abstract
For the catalytic synthesis of carbon nanotubes having fullerene- like diameters, a detailed description of the catalyst preparation is given. Silica-supported catalyst samples (prepared from Co-acetate solution of different pH) were tested in the decomposition of acetylene. Catalysts with various pretreatments (different calcination temperature, time and atmosphere) were compared in the carbon nanotubes production and characterized by X-ray photoelectron spectroscopy (XPS). The quality and the quantity of the bucky tubes were studied by transmission electron microscopy (TEM). As a final conclusion, it is possible that changing the pH of the solution during catalyst preparation allows control of the quality of the carbon nanotubes, namely the amount of turbostratic straight and helical tubes.
Similar content being viewed by others
References
W.R. Davis, R.J. Slawson and G.R. Rigby, Nature 171 (1953) 756.
P.C.M. van Stiphout, D.E. Stobbe, F.T.H. van der Scheur and J.W. Geus, Appl. Catal. 40 (1988) 219.
A.I. La Cava, C.A. Bernardo and D.L. Trimm, Carbon 20 (1982) 219.
A. Sacco, F.W.A.H. Geurts, G.A. Jablonski, S. Lee and R.A. Gately, J. Catal. 119 (1989) 322.
R.T.K. Baker, P.S. Harris, Chemistry and Physics of Carbon 14 (1978) 83.
J.L. Figueiredo, C.A. Bernardo, J.J. Chludzinski and R.T.K. Baker, J. Catal. 110 (1988) 127.
R.T.K. Baker, Carbon 27 (1989) 315.
G.G. Tibbets, J. Cryst. Growth 66 (1984) 632.
M. Kawaguchi, K. Nozaki, S. Motojima and H. Iwanaga, J. Cryst. Growth 118 (1992) 309.
G.G. Tibbetts, M. Endo and C.P. Beetz Jr., SAMPE Journal Sept/Oct. 30 (1986).
J.S. Speck, M. Endo and M.S. Dresselhaus, J. Cryst. Growth 94 (1989) 834.
M.J. Graff and L.F. Albright, Carbon 20 (1982) 319.
A. Oberlin and M. Endo, J. Cryst. Growth 32 (1976) 335.
H. Dai, J.H. Hafner, A.G. Rinzler, D.T. Colbert and R.E. Smalley, Nature 384 (1996) 147.
H. Takaba, M. Katagiri, M. Kubo, R. Vetrivel and A. Miyamoto, Microporous Mater. 3 (1995) 449.
K. Tanaka, K. Okahara, M. Okada and T. Yamabe, Fullerene Sci. Technol. 1 (1993) 137.
E.G. Gal'pern, I.V. Stankevich, A.L. Chistykov and L.A. Chernozatonskii, Chem. Phys. Lett. 214 (1993) 345.
N. Hamada, S. Sawada and A. Oshiyama, Phys. Rev. Lett. 68 (1992) 1579.
P.M. Ajayan and S. Iijima, Nature 361 (1993) 333.
D.H. Robertson, D.W. Brenner and J.W. Mintmire, Phys. Rev. B 45 (1992) 12592.
J.W. Mintmire, B.I. Dunlap and C.T. White, Phys. Rev. Lett. 68 (1992) 631.
S. Iijima, Nature 354 (1991) 56.
Y. Ando and S. Iijima, Jpn. J. Appl. Phys. 32 (1993) 107.
T.W. Ebbesen and P.M. Ajayan, Nature 358 (1992) 220.
S. Seraphin, D. Zhou and J. Jiao, Carbon 31 (1993) 1212.
R.E. Smalley, in: Regulation of Proteins by Ligands, Proc. The Robert A. Welch Foundation Conf. on Chemical Research XXXVI, Houston, 26—27October 1992, p. 161.
N. Hatta and K. Murata, Chem. Phys. Lett. 217 (1994) 398.
S. Iijima and T. Ichihashi, Nature 363 (1993) 603.
P.M. Ajayan, J.M. Lambert, P. Bernier, L. Barnedette, C. Colliex and J.M. Planeix, Chem. Phys. Lett. 215 (1993) 509.
D.S. Bethune, C.H. Kiang, M.S. de Vries, G. Gorman, R. Savoy, J. Vazquez and R. Beyers, Nature 363 (1993) 606.
S. Seraphin, D. Zhou, J. Jiao, J.C. Withers and R. Loutfy, Nature 362 (1993) 503.
J.H. Hwang, W.K. Hsu and C-Y. Mou, Adv. Mat. 5 (1993) 643.
A. Thess, R. Lee, P. Nikolaev, H. Dai, P. Petit, J. Robert, C. Xu, Y. Hee Lee, S. Gon Kim, D.T. Colbert, G. Scuseria, D. Tomanek, J.E. Fischer and R.E. Smalley, Science 273 (1996) 483.
X.F. Zhang, X.B. Zhang, G. Van Tendeloo, S. Amelinckx, M. Op de Beeck and J. Van Landuyt, J. Cryst. Growth 130 (1993) 368.
T.W. Ebbesen, Annu. Rev. Mater. Sci. 24 (1994) 235.
V. Ivanov, J.B. Nagy, P. Lambin, A.A. Lucas, X.B. Zhang, X.F. Zhang, D. Bernaerts, G. Van Tendeloo, S. Amelinckx and J. Van Landuyt, Chem. Phys. Lett. 223 (1994) 329.
V. Ivanov, A. Fonseca, J.B. Nagy, A.A. Lucas, P. Lambin, D. Bernaerts and X.B. Zhang, Carbon 33 (1995) 1727.
K. Hernadi, A. Fonseca, J.B. Nagy, D. Bernaerts, J. Riga and A.A. Lucas, Synth. Metals 77 (1996) 31.
A. Fonseca, K. Hernadi, J.B. Nagy, D. Bernaerts and A.A. Lucas, J. Mol. Catal. A107 (1996) 159.
K. Hernadi, A. Fonseca, J.B. Nagy, D. Bernaerts and A.A. Lucas, Carbon 34 (1996) 1249.
K. Hernadi, A. Fonseca, J.B. Nagy, D. Bernaerts, A. Fudala and A.A. Lucas, Zeolites 17 (1996) 416.
G.A. Somorjai, in: Chemistry in Two Dimensions: Surfaces (Cornell University Press, Ithaca, 1981).
G.A. Somorjai and M.X. Yang, J. Mol. Catal. A115 (1997) 389.
N.M. Rodriguez, M.S. Kim and R.T.K. Baker, J. Catal. 144 (1993) 93.
Rights and permissions
About this article
Cite this article
Hernadi, K., Fonseca, A., Piedigrosso, P. et al. Carbon nanotubes production over Co/silica catalysts. Catalysis Letters 48, 229–238 (1997). https://doi.org/10.1023/A:1019035306217
Issue Date:
DOI: https://doi.org/10.1023/A:1019035306217