Abstract
It seems needless to say that monodispersed particles perfectly controlled in size, shape and internal structure are the ultimate goals of general advanced materials such as electromagnetic devices, modern ceramics, catalysts, photosensitive materials, medicines, pigments, cosmetics, etc., since the properties of these materials decisively depend on their size, shape and structure. However, when we try to produce monodispersed particles as ideal materials on industrial scale, we have to be confronted with essential problems of their exceedingly low productivity or high costs, because most of them have been prepared in extremely dilute systems (mostly of the order of 10-3 – 10-2 mole dm-3) to avoid the tremendous coagulation or need costly metal alkoxides as starting materials. In addition, when we employ the sol-gel process for the preparation of amorphous metal oxides starting from metal alkoxides, we usually suffer from a problem of its rather poor reproducibility. Still more difficult issue is the perfect control of their mean size, shape and internal structure, and it is hardly achieved in most monodispersed systems. Thus, it has appeared almost impossible in principle to realize the dream of producing monodispersed particles from ordinary metal salts in highly condensed systems, not to mention the precise control of the above properties.
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References
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© 1996 Kluwer Academic Publishers
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Sugimoto, T. (1996). A New Method in Preparation of Monodisperse Particles. In: Pelizzetti, E. (eds) Fine Particles Science and Technology. NATO ASI Series, vol 12. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0259-6_5
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DOI: https://doi.org/10.1007/978-94-009-0259-6_5
Publisher Name: Springer, Dordrecht
Print ISBN: 978-0-7923-4047-8
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