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http://dx.doi.org/10.3740/MRSK.2010.20.9.472

Fabrication and Thermophysical Properties of Al2O3-Based Multicomponent Composites by Sol-Gel Process  

Lim, Saet-Byeol (Department of Chemistry/Institute of Basic Science, Sungshin Womens Univ.)
You, Hee-Jung (Department of Chemistry/Institute of Basic Science, Sungshin Womens Univ.)
Hong, Tae-Whan (Department of Material Science and Engineering/Research Center for Sustainable Eco-Devices and Materials (ReSEM), Chungju National Univ.)
Jung, Mie-Won (Department of Chemistry/Institute of Basic Science, Sungshin Womens Univ.)
Publication Information
Korean Journal of Materials Research / v.20, no.9, 2010 , pp. 472-477 More about this Journal
Abstract
$Al_2O_3$ has received wide attention with established use as a catalyst and growing application in structural or functional ceramic materials. On the other hand, the boehmite (AlO(OH)) obtained by sol-gel process has exhibited a decrease in surface area during phase transformation due to a decline in surface active site at high temperature. In this work, $Al_2O_3$-CuO/ZnO (ACZ) and $Al_2O_3$-CuO/CeO (ACC) composite materials were synthesized with aluminum isopropoxide, copper (II) nitrate hemi (pentahydrate), and cerium (III) nitrate hexahydrate or zinc (II) nitrate hexahydrate. Moreover, the Span 80 as the template block copolymer was added to the ACZ/ACC composition to make nano size particles and to keep increasing the surface area. The ACZ/ACC synthesized powders were characterized by Thermogravimetry-Differential Thermal analysis (TG/DTA), X-ray Diffractometer (XRD), Field-Emmision Scanning Electron Microscope (FE-SEM), Bruner-Emmett-Teller (BET) surface analysis and thermal electrical conductivity (ZEM-2:M8/L). An enhancement of surface area with the addition to Span 80 surfactant was observed in the ACZ powders from 105 $m^2$/g to 142 $m^2$/g, and the ACC powders from 103 $m^2$/g to 140 $m^2$/g, respectively.
Keywords
$Al_2O_3$-CuO/ZnO; $Al_2O_3$-CuO/CeO; span 80; template block co polymer;
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연도 인용수 순위
1 F. Mirjalili, M. Hasmaliza and L. C. Abdullah, Ceram. Int., 36, 1253 (2010).   DOI   ScienceOn
2 S. Yilmaz, Y. Kutmen-Kalpakli and E. Yilmaz , Ceram. Int., 35(5), 2029 (2009).   DOI   ScienceOn
3 K. S. Yoo, S. D. Kim and K. S. Kang, Hwahakkonghak, 40, 70 (2002).
4 G. Centi, S. Perathoner, D. Biglino and E. Giamello, J. Catal., 151(1), 75 (1995).
5 H. G. El-Shobaky and M. Mokhtar, Appl. Catal. Gen., 180, 335 (1999).   DOI   ScienceOn
6 M. H. Lee and M. W. Jung, J. Kor. Ceram. Soc., 45(5), 297 (2008).   DOI   ScienceOn
7 J. Xiaoyun, L. Liping, C. Yingxu and Z. Xiaoming, J. Mol. Catal. Chem., 197, 193 (2003).   DOI   ScienceOn
8 H. Yun, K. Miyazawa, I. Honma, H. Zhou and M. E. Smith, Mater. Sci. Eng., C23(4), 169 (2007).
9 G. D. Zhan and A. K. Mukherjee, Int. J. Appl. Ceram. Tech., 1(2), 161 (2004).
10 U. Y. Hwang, S. W. Lee, J. W. Lee, H. S. Park, K. K. Koo, S. J. Yoo, H. S. Yoon and Y. R. Kim, Hwahakkonghak, 39(2), 206 (2001).
11 J. A. Wang, X. Bokhimi, A. Morales and O. Novaro, J. Phys. Chem., B103, 299 (1999).
12 J. B. Lee and S.T. Kim, J. Mater. Res., 16(12), 771 (2006) (in Korean).
13 L. A. O'Dell, S. L. P. Savin, A. V. Chadqick and M. E. Smith, Solid State Nucl. Magn. Reson., 31, 169 (2007).   DOI   ScienceOn
14 S. Rossignol and C. Kappenstein, Int. J. Inorg. Mater., 3(1), 51 (2001).   DOI   ScienceOn
15 L. Xue and J. Chen, J. Mater. Sci. Lett., 11(8), 443 (1992).   DOI
16 A. Vazquez, T. Lopez, R. Gomez, X. Bokihimi, A. Morales and O. Novaro, J. Solid State Chem., 123(2), 161 (1997).   DOI   ScienceOn