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Synthetic Imogolite Paracrystals

Published online by Cambridge University Press:  25 February 2011

Jeffrey C. Huling
Affiliation:
UNM/NSF Center for Micro-Engineered Ceramics, University of New Mexico, Albuquerque, NM 87131
C. Jeffrey Brinker
Affiliation:
UNM/NSF Center for Micro-Engineered Ceramics, University of New Mexico, Albuquerque, NM 87131 Sandia National Laboratories, Ceramic Synthesis and Inorganic Chemistry Department, Albuquerque, NM 87185
William C. Ackerman
Affiliation:
UNM/NSF Center for Micro-Engineered Ceramics, University of New Mexico, Albuquerque, NM 87131
Douglas M. Smith
Affiliation:
UNM/NSF Center for Micro-Engineered Ceramics, University of New Mexico, Albuquerque, NM 87131
Joseph K. Bailey
Affiliation:
Sandia National Laboratories, Ceramic Synthesis and Inorganic Chemistry Department, Albuquerque, NM 87185
Janos Farkas
Affiliation:
UNM/NSF Center for Micro-Engineered Ceramics, University of New Mexico, Albuquerque, NM 87131
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Abstract

Imogolite is a structurally microporous tubular clay comprising one-dimensional pore channels that are ∼1 nm in diameter. In addition to its novel tubular morphology, a notable structural characteristic of imogolite is its occurrence in paracrystalline tube bundles in which the individual tubes are close-packed with their axes in parallel alignment. We have developed a technique that aligns and tightly packs the tube bundles over macroscopic dimensions, in a manner analogous to the alignment and packing of the individual imogolite tubes within the bundles. This extends the range of imogolite paracrystallinity, effectively eliminating mesoporosity and nontubular phases.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

1. Cradwick, P.D.G., Farmer, V.C., Russell, J.D., Masson, C.R., Wada, K., and Yoshinaga, N., Nature Phys. Sci. 240, 187 (1972).Google Scholar
2. Wada, S-I. and Wada, K., Clays and Clay Minerals 30, 123 (1982).Google Scholar
3. Ackerman, W.C., Smith, D.M., Huling, J.C., Y-W. Kim, Bailey, J.K. and Brinker, C.J., Langmuir (to be published 1993).Google Scholar
4. Johnson, I.D., Werpy, T.A., and Pinnavaia, T.J., J. Am. Chem. Soc. 110, 8545 (1988).Google Scholar
5. Johnson, L.M. and Pinnavaia, T.J., Langmuir 6, 307 (1990).Google Scholar
6. Johnson, L.M. and Pinnavaia, T.J., Langmuir 7, 2636 (1991).Google Scholar
7. Werpy, T.A., Michot, L.J., and Pinnavaia, T.J., in Novel Materials in Heterogeneous Catalysis, edited by Baker, R.T.K. and Murrell, L.L. (American Chemical Society, Washington, D.C., 1990), pp. 119128.Google Scholar
8. Horikawa, Y., Clay Science 5, 43 and 51 (1976).Google Scholar
9. Egashira, K., Clay Science 5, 87 (1977).Google Scholar
10. Wells, N., Theng, B.K.G., and Walker, G.D., Clay Science 5, 257 (1980).Google Scholar
11. Farmer, V.C. and Fraser, A.R., in International Clay Conference 1978, edited by Mortland, M.M. and Farmer, V.C. (Elsevier Science Publishers, Amsterdam, 1979), pp. 547553.Google Scholar
12. Vaintshtein, B.K., Diffraction of X-Rays by Chain Molecules (Elsevier Publishing Co., Amsterdam, 1966) p.331.Google Scholar
13. Wada, K. and Yoshinaga, N., Am. Mineral. 54, 50 (1969).Google Scholar
14. Farmer, V.C., Adams, M.J., Fraser, A.R., and Palmieri, F., Clay Minerals 18, 459 (1983).Google Scholar
15. Gaast, S.J. van der, Wada, K., Wada, S.I., and Kakuto, Y., Clays and Clay Minerals 33, 237 (1985).Google Scholar
16. MacKenzie, K.J.D., Bowden, M.E., Brown, I.W.M., and Meinhold, R.H., Clays and Clay Minerals 37, 317 (1989).Google Scholar
17. Russell, J.D., McHardy, W.J. and Fraser, A.R., Clay Minerals 8, 87 (1969).Google Scholar