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Preparation Of Zirconium Diphosphonate-Phosphites With A Narrow Distribution Of Mesopores.

Published online by Cambridge University Press:  15 February 2011

G. Alberti
Affiliation:
University of Perugia, Dept. of Chemistry, via Elce di Sotto 10, 06100 Perugia, Italy.
U. Costantino
Affiliation:
University of Perugia, Dept. of Chemistry, via Elce di Sotto 10, 06100 Perugia, Italy.
R. Vivani
Affiliation:
University of Perugia, Dept. of Chemistry, via Elce di Sotto 10, 06100 Perugia, Italy.
P. Zappelli
Affiliation:
Eniricerche S.p.A., via E. Ramarini 32, 00016 Monterotondo (Roma), Italy.
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Abstract

The presence of H3PO3 in the synthesis of zirconium diphosphonates in dimethylsulfoxide, other than the expected dilution of the pillars, which in turn gives rise to a certain degree of microporosity, may also induce the formation of a high percentag. of mesopores. E.g., compounds with high surface area(300–500 m2 /g) of which 60–70% is due to mesopores with diameters 20–40 Å and the remaining is due to micropores, were obtained. It was furthermore found that the distribution of the mesopores was fairly narrow. Compounds with micropores <3 Å and mesopores of 20–30 Å behave in practice as pure and narrow mesoporous solids;they are therefore of great interest as new molecular inorgano-organic sieves.

Type
Research Article
Copyright
Copyright © Materials Research Society 1991

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References

REFERENCES

1. Dines, M.B., Giacomo, P.D. Di, Callahan, K.P., Griffith, P.C., Lane, R.H., Cooksey, R.E., in Chemically modified surfaces in catalysis and electrocatalysis, ACS Symp. Ser. 192, (Washington DC., 1982) Chap. 13.Google Scholar
2. Dines, M.B., Cooksey, R.E., Griffith, P.C. and Lane, R.H., Inorg.Chem. 22, 1003 (1983).Google Scholar
3. Clearfield, A., in Desiqn of New Materials, edited by Cocke, D.L. and Clearfield, A., (Plenum Press, New York, 1987) pp. 128133.Google Scholar
4. Alberti, G., Costantino, U., Vivani, R. and Zappelli, P., (to be published).Google Scholar
5. Alberti, G., Costantino, U., Allulli, S., Tomassini, S., J.Inorg. Nucl. Chem. 40, 1113 (1978).CrossRefGoogle Scholar