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Synthesis of Bimodally Porous γ-Alumina Granules by Sol-Gel/Oil-Drop Method  

Choi, Junseo (College of Environment and Applied Chemistry, Kyunghee University)
Kim, Jinsoo (College of Environment and Applied Chemistry, Kyunghee University)
Lee, Tai-Gye (Department of Chemical Engineering, Yonsei University)
Publication Information
Applied Chemistry for Engineering / v.18, no.2, 2007 , pp. 111-115 More about this Journal
Abstract
Bimodally porous ${\gamma}$-alumina granules, including mesopores (2~50 nm) and macropores (>50 nm), were prepared by sol-gel and oil-drop method. Mesopores are made from the voids among the alumina crystallites, while macropores are from the space of the decomposed PS particles used as physical templates during the granulation process. The product ${\gamma}$-alumina granules with the average diameter of 2 mm were characterized by FE-SEM, XRD, FT-IR, $N_2$ porosimetry, and universal mechanical testing system.
Keywords
sol-gel; mesopore; macropore; granulation; oil-drop;
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1 J. Choi, B. Kim, and J. Kim, J. Chem. Eng. Jpn., 39, 1000 (2006)   DOI   ScienceOn
2 D. Mishra, S. Anand, R. K. Panda, and R. P. Das, Mater. Lett., 42, 38 (2000)   DOI   ScienceOn
3 K. S. W. Sing, D. H. Everett, R. A. W. Haul, L. Moscou, R. A. Pierotti, J. Rouquerol, and T. Siemieniewska, Pure Appl. Chem., 57, 603 (1985)   DOI
4 B. E. Yoldas, Am. Ceram. Soc. Bull., 286, 54 (1975)
5 S.-S. Kim, J. Choi, J. Kim, H. Lee, and H. K. Song, J. Ind. Eng. Chem., 11, 533 (2005)
6 G. Buelna, Ph. D. Dissertation, University of Cincinnati, Cincinnati, USA (2001)
7 H. Gleiter, Adv. Mater., 4, 474 (1992)   DOI
8 C. J. Brinker and G. W. Scherer, Sol-Gel Science, Academic Press, New York (1990)
9 J. H. de Boer, The Structure and Properties of Porous Materials, Butterworths, Reading, Mass (1975)
10 J. A. Gadsden, Infrared Spectra of Minerals and Related Inorganic Compounds, Batterworths, Reading, Mass (1975)
11 G. Buelna and Y. S. Lin, Microporous and Mesoporous Mater., 30, 359 (1999)
12 Z. M. Wang and Y. S. Lin, J. Catal, 174, 43 (1998)
13 S. E. Pratsinis, Prog. Energy Combust. Sci., 24, 197 (1998)