ジルコニウムアルコキシドの加水分解による単分散微粒子生成に及ぼすアルコール溶媒の影響

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  • Influence of Alcoholic Solvents on the Formation of Monodispersed Particles by Hydrolysis of Zirconium Tetra-<i>n</i>-Butoxide
  • ジルコニウム アルコキシド ノ カスイ ブンカイ ニ ヨル タンブンサン ビリ

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The influence of chain length and molecular structure of alcoholic solvents on the hydrolysis behavior of zirconium tetra butoxide ‹ZBu› and morphology of product particles was investigated. ZBu dissolved in alcoholic solvents except methanol. Monodispersed zirconia particles with submicron size were obtained in the range of water to ZBu molar ratio of 1.6-2.5 in ethanol and 2.1-2.2 in propanol. In contrast, in alcohols with longer chain lengths than butanol, a mixture of agglomerates and large spherical particles was obtained. The formation of the mixture was related to induction time and hydrolysis rate of ZBu. On the other hand, an increase in the number of carbon branches in butanol increases the amount of agglomerates.

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