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Theoretical research and specific surface area analysis of nitrogen adsorption indicated that a lot of structural micropores exist in sepiolite minerals fibers. However, the microporous size, existing form, and the distribution relationship between microporous structures were not proved yet. In this paper, the section TEM samples of nanofibers were prepared on the basis of the metal embedding and cutting technique, and the inner structure of sepiolite nanofibers was observed by TEM. The results showed that sepiolite fibers have multiplayer structure similar to concentric circles, and many micropores with the size of about 2–5 nm are normal and parallel to the -axis. The reason for the previously mentioned phenomenon was explained by using BET analysis and X-ray diffraction analysis results.
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Qingguo Tang, Fei Wang, Mengran Tang, Jinsheng Liang, and Chongyan Ren, “Study on Pore Distribution and Formation Rule of Sepiolite Mineral Nanomaterials,” Journal of Nanomaterials, vol. 2012, Article ID 382603, 6 pages, 2012. doi:10.1155/2012/382603
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This article was originally published in Hindawi Journal of Nanomaterials Volume 2012 (2012).