Browse > Article
http://dx.doi.org/10.4191/KCERS.2006.43.9.564

Effect of Water and Aluminum Sulfate Mole Ratio on Pore Characteristics in Synthesis of AlO(OH) Nano Gel by Homogeneous Precipitation  

Choe, Dong-Uk (Center of Chemical Process and Engineering, Korea Research Institute of Chemical Technology)
Park, Byung-Ki (Center of Chemical Process and Engineering, Korea Research Institute of Chemical Technology)
Lee, Jung-Min (Center of Chemical Process and Engineering, Korea Research Institute of Chemical Technology)
Publication Information
Journal of the Korean Ceramic Society / v.43, no.9, 2006 , pp. 564-568 More about this Journal
Abstract
AlO(OH) nano gel is used in precursor of ceramic material, coating material and catalyst. For use of these, not only physiochemical control for particle morphology, pore characteristic and peptization but also studies of synthetic method for preparation of advanced application products were required. In this study, AlO(OH) nano gel was prepared through the aging and drying process of aluminum hydroxides gel precipitated by the hydrolysis reaction of dilute NaOH solution and aluminum sulfate solution. In this process, optimum synthetic condition of AlO(OH) nano gel having excellent pore volume as studying the effect of water and aluminum sulfate mole ratio on gel precipitates has been studied. Water and aluminum sulfate mole ratio brought about numerous changes on crystal morphology, surface area, pore volume and pore size. Physiochemical properties were investigated as using XRD, TEM, TG/DTA, FT-IR, and $N_2$ BET method.
Keywords
Porous material; Boehmite; ${\gamma}-alumina$; Catalyst; Alumina ceramic;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 B. K. Park, J. K. Suh, J. M. Lee, and D. S. Suhr, 'The Rehydration Properties of Amorphous Alumina Powder in Low Water/Alumina Ratio,' J. Kor. Ceram. Soc., 35 [10] 1085-93 (1998)   과학기술학회마을
2 S. Ram, 'Infrared Spectral Study of Molecular Vibrations in Amorphous, Nanocrystalline and AlO(OH) .${\alpha}H_2O$ Bulk Crystals,' Infrared Physics & Technology, 42 547-60 (2001)   DOI   ScienceOn
3 R. K. Oberlander, 'Aluminas for Catalysts-Their Preparation and Properties,' Appl. Ind. Catalysis, 3 63-110 (1984)
4 R. B. Bagwell and G. L. Messing, 'Critical Factor in the Production of Sol-Gel Derived Porous Alumina,' Key Eng. Mater., 115 45-64 (1996)   DOI
5 C. Misra, 'Aluminum Oxide(Hydrate),' Encyclopedia of Chem. Tech., 4th Ed., 2 317-30 (1992)
6 B. C. Lippens and J. J. Steggerda, 'Active Alumina,' Physical and Chemical Aspects of Adsorbents and Catalysts, 4 171-211 (1970)
7 L. K. Hudson, C. Misra, and K. Wefers, 'Aluminum Oxide,' Ullmann's Encyclopedia of Ind. Chem., 5th Ed., Al 557-94, 1985.D
8 R. Dale Woosley, 'Activated Alumina Desiccants,' Alumina Chemicals, 2nd Ed. Am. Ceram. Soc., 241-50, 1990
9 W. A. Deer, R. A. Howie, and J. Zussman, 'Rock Forming Minerals,' Longmans, London, 5 111-16 (1969)
10 L. Farkas, P. Gado, and P. E. Wermer, Mat. Res. Bull., 12 1213-18 (1977)   DOI   ScienceOn
11 K. H. Lee and B. H. Ha, 'Preparation and Characteristic for $\gamma$-Alumina,' J. Kor. Inst. Chem. Eng., 34 [1] 28-35 (1996)
12 B. K. Park, J. K. Suh, and J. M. Lee, 'Decomposition Characteristics of Aniline Treated in $Fe_2O_3$ Supported $\gamma$-Alumina Catalyst and $O_3$(in Korean),' J. Kor. Ceram. Soc., 42 [4] 237-44 (2005)   과학기술학회마을   DOI   ScienceOn
13 U.S Patent: 4,391,740 (1983)
14 B. K. Park, J. K. Suh, J. M. Lee, and D. S. Suhr, 'Preparation of High-Apacity Ceramic Catalytic Support from Gibbsite(in Korean),' J. Kor. Ceram. Soc., 39 [3] 245-51 (2002)   DOI   ScienceOn
15 B. K. Park, J. M. Lee, and D. S. Suhr, 'Preparation of $Fe_2O_3$ Supported $\gamma$-Alumina Catalyst by Hydrothermal Method(in Korean),' J. Kor. Ceram. Soc., 40 [7] 683-89 (2003)   과학기술학회마을   DOI   ScienceOn
16 B. K. Park, J. M. Lee, and D. S. Suhr, 'Effect of $CH_3COOH$ Concentration on Characteristics of $Fe_2O_3$ Supported $\gamma$-Alumina Catalyst by Hydrothermal Method(in Korean),' J. Kor. Ceram. Soc., 40 [8] 758-64 (2003)   과학기술학회마을   DOI   ScienceOn
17 Z. J. Galas, S. Janiak, W. Mista, J. Wrzyszcz, and M. Zawadzki, 'Morphological and Phase Changes of Transition Aluminas during their Rehydration,' J. Mat. Sci., 28 2075- 78 (1993)   DOI
18 P. Nortier and M. Soustelle, 'Alumina Carriers for Automotive Pollution Contro,' pp. 275-300, Catalysis and Automotive Pollution Control. Ed. by Crucq and A. Frennet, Elsevier Sci. Pub., 1987