Observation and analysis of the niobate nanosheet solution

Yamaguchi, Daisuke; Miyamoto, Nobuyoshi; Koizumi, Satoshi; Nakato, Teruyuki*; Hashimoto, Takeji

The exfoliated K $_{4}$ Nb $_{6}$ O $_{17}$ nanosheets in the aqueous solutions were observed by (ultra-) small-angle neutron and X-ray scattering (SANS, USANS and USAXS). A comprehensive measurement revealed the assembled structure of nanosheets in wide range of q, from 310 $^{-4}$ nm $^{-1}$ to 1 nm $^{-1}$ , where q is the magnitude of scattering vector. The details of liquid crystalline structure formed by [Nb $_{6}$ O $_{17}$ ] $^{4-}$ nanosheets, which was reflected on the scattering at higher q region (310 $^{-2}$ (nm $^{-1}$ )), largely depend on the nanosheet lateral dimension or its volume fraction. On the other hand, at lower q region (110 $^{-2}$ (nm $^{-1}$ )), the scattering profile shows a power law scattering of which index is -2.5 regardless of the nanosheet lateral dimension or its volume fraction, suggesting that at large scale nanosheets take similar mass fractal distribution.

Language	:	Japanese
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Meeting title	:	第55回高分子学会年次大会
Held date	:	2006/05
Location (city)	:	名古屋
Location (country)	:	日本
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Registration No. : BB20060401
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