Summary
The formation of V2O5 fibrous microcrystals in the V2O5-NH3-H2O system has been investigated by electron microscopy. The morphology of these microcrystals is dependent on the concentration of the particular components in the colloidal system and on the time of aging. In some colloid systems the orientation of V2O5 fibrous crystals with their long axes parallel to one another is also possible. The microcrystal growth in these systems can be attributed to very effective conditions for the recrystallization of vanadium pentoxide crystals in equilibrium with ammonium vanadate in solution.
References
Takiyama, K., Bull. Chem. Soc. Japan31, 329 (1958).
Takiyama, K., Bull. Chem. Soc. Japan31, 555 (1958).
Nemtsova, V. V., Dokl. Akad. Nauk USSR79, 297 (1951); Chem. Abst.45, 6013 (1951).
Tamamushi, B., Sci. Paper Coll. Gen. Educ. Univ. Tokyo6, 3 (1956); cited from reference 1.
Thiele, H., G. Kienast Kolloid-Z.127, 134 (1952).
Berestneva, Z. Ya., V. A. Kargin, Uspehi Khim.24, 249 (1955).
Gmelins Handbuch der Anorganischen Chemie, 8. Auflage, Vanadium, Teil B, Lieferung 1, System-Nummer 48, Verlag Chemie-GMBH-Weinheim/Bergstr.
Livage, J., N. Gharbi, M. C. Leroy, M. Michand, Mat. Res. Bull.13, 1117 (1978).
Watson, J. H. L., W. Heller, I. Schuster, Proc. Eur. Reg. Conf. on Electron Microscopy, Vol. I, p. 229 (Delft 1960).
Watson, J. H. L., R. R. Cardell, Jr, W. Wojtowicz, Proc. Vth Internat. Congress for Electron Microscopy (GG2), Academic Press Inc. (New York 1962).
Langmuir, I., J. Chem. Phys.6, 873 (1938).
Musić, S., J. Šipalo-Žuljević, Colloid Polymer Sci.256, 970 (1978).
Efremov, I. F. in:E. Matijević Surface and Colloid Chemistry, Vol. 8, John Wiley (New York 1976).
Author information
Authors and Affiliations
Additional information
With 3 figures
Rights and permissions
About this article
Cite this article
Musić, S., Ljubešić, N. Electron microscopy of V2O5 microcrystals in the V2O5-NH3-H2O colloid system. Colloid & Polymer Sci 258, 194–195 (1980). https://doi.org/10.1007/BF01498281
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01498281