Synthesis of Ferric Oxide Nanoparticles with Controllable Crystal Phases by Salt-assisted Combustion Method

doi:10.3724/SP.J.1077.2010.09879

Abstract

Abstract:

The salt-assisted combustion method was applied in synthesis of Fe₂O₃ nanoparticles by using Fe(NO₃)₃·9H₂O, polyethylene glycol (PEG2000) and KCl as oxidant, fuel and salt, respectively. The products were characterized by HRTEM, XRD, LRS and N₂adsorption. It is found that the crystal phase (including α-Fe₂O₃, γ-Fe₂O₃ and the mixed phases of α-Fe₂O₃ and γ-Fe₂O₃) of Fe₂O₃ nanoparticles can be adjusted by changing the KCl/NO^3- molar ratio. Addition of soluble inert KCl in the redox mixture solution for combustion synthesis results in the formation of well-dispersed γ-Fe₂O₃nanoparticles and a drastic increase in the specific surface area from 21.96 to 102.35 m²/g. A mechanism was proposed to illustrate the possible formation process of different crystal phase nanoparticles with different character.

Key words: Fe₂O₃ nanoparticles, salt-assisted combustion, crystal phase

CLC Number:

TQ138

SONG Jun, MA Zhen-Ye, LI Cheng, WU Ru-Jun. Synthesis of Ferric Oxide Nanoparticles with Controllable Crystal Phases by Salt-assisted Combustion Method[J]. Journal of Inorganic Materials, 2010, 25(7): 780-784.

References

[1]ZHENG Yuan-hui, CHENG Yao, WANG Yuan-sheng, et al. Quasicubic α-Fe2O3 nanoparticles with excellent catalytic performance. The Journal of Physical Chemistry B, 2006, 110(7): 3093-3097.
[2]Bailey J K, Brinker C J, Mecartney M L. Growth mechanisms of iron oxide particles of differing morphologies from the forced hydrolysis of ferric chloride solutions. Journal of Colloid and Interface Science, 1993, 157(1): 1-13.
[3]Hamada S, Matijevic E. Preparation of uniform cubic hematite particles by hydrolysis of ferric chloride in alcohol-water solutions. Journal of Colloid and Interface Science, 1981, 84(1): 274-277.
[4]Hamada S, Matijevic E. Formation of monodispersed colloidal cubic hematite particles in ethanol + water solutions. Journal of the Chemical Society. Faraday Transactions, 1982, 178: 2147-2156.
[5]Ozaki M, Kratohvil S, Matijevic E. Formation of monodispersed spindle-type hematite particles. Journal of Colloid and Interface Science, 1984, 102(1): 146-151.
[6]Park G S, Shino D, Waseda Y, et al. Internal structure analysis of monodispersed pseudocubic hematite particles by electron microscopy. Journal of Colloid and Interface Science, 1996, 177(1): 198-207.
[7]Sugimoto T, Muramatsu A, Sakata K, et al. Characterization of hematite particles of different shapes. Journal of Colloid and Interface Science, 1993, 158(2): 420-428.
[8]Sugimoto T, Sakata K. Preparation of monodisperse pseudocubic α-Fe₂O₃particles from condensed ferric hydroxide gel. Journal of Colloid and Interface Science, 1992, 152(2): 587-590.
[9]Sugimoto T, Sakata K, Muramatsu A. Formation mechanism of monodisperse pseudocubic α-Fe₂O₃ particles from condensed ferric hydroxide gel. Journal of Colloid and Interface Science, 1993, 159(2): 372-382.
[10]KAN Shi-hai, YU San, PENG Xiao-gang, et al. Formation process of nanometer-sized cubic ferric oxide single crystals. Journal of Colloid and Interface Science, 1996, 178(2): 673-680.
[11]KAN Shi-hai, ZHANG Xin-tong, YU San, et al. Synthesis of uniform ferric oxide particles from deionized colloids. Journal of Colloid and Interface Science, 1997, 191(2): 503-509.
[12]Kandori K, Ishikawa T. TPD-MS-TG study of hematite particles produced by the forced hydrolysis reaction. Physical Chemistry Chemical Physics, 2001(3): 2949-2954.
[13]Kandori K, Okamoto N, Ishikawa T. Preparation of nanoporous micrometer-scale hematite particles by a forced hydrolysis reaction in the presence of polyethylene glycol. Langmuir, 2002, 18(7): 2895-2900.
[14]Kandori K, Ishikawa T. Preparation and microstructural studies on hydrothermally prepared hematite. Journal of Colloid and Interface Science, 2004, 272(1): 246-248.
[15]Konishi Y, Kawamura T, Asai S. Microstructural and magnetic studies on hydrothermally prepared hematite. Metallurgical and Materials Transactions B, 1994, 25(2): 165-170.
[16]Sahu K K, Rath C, Mishra N C, et al. Microstructural and magnetic studies on hydrothermally prepared hematite. Journal of Colloid and Interface Science, 1997, 185(2): 402-410.
[17]SHANG Yu-xing, Weert G V. Iron control in nitrate hydrometallurgy by autoclave hydrolysis of iron (III) nitrate. Hydrometallurgy, 1993, 33(3): 273-290.
[18]Hiroshi Shiho, Nobuo Kawahashi. Iron compounds as coatings on polystyrene latex and as hollow spheres. Journal of Colloid and Interface Science, 2000, 226(1): 91-97.
[19]MA Zhen-ye, LI Feng-sheng, CUI Ping, et al. Preparation of nanometer-sized Fe₂O₃ and its catalytic performance for ammonium perchlorate decomposition. Chinese Journal of Catalysis, 2003, 24(10): 795-798. (In Chinese)
[20]Basavaraja S, Vijayanand H, Venkataraman A. Characterization of γ-Fe₂O₃nanoparticles synthesized through self-propagating combustion route. Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 2007, 37(6): 409-412.
[21]CHEN Wei-Fan, LI Feng-Sheng, YU Ji-Yi. Combustion synthesis and characterization of nanocrystalline CeO₂-based powders via ethylene glycol-nitrate process. Materials Letters, 2006, 60(1): 57-62.
[22]Chick L A, Maupin G D, Pederson L R. Glycine-nitrate synthesis of a ceramic-metal composite. Nanostructured Materials, 1994, 4(5): 603-615.
[23]CHEN Wei-Fan, LI Feng-Sheng, YU Ji-Yi, et al. Novel salt-assisted combustion synthesis of high surface area ceria nanopowders by an ethylene glycol-nitrate combustion process. Journal of Rare Earths, 2006, 24(4): 434-439.
[24]JIAO Huan, WEI Ling-qi, ZHANG Na, et al. Melting salt assisted sol-gel synthesis of blue phosphor Y₂SiO₅: Ce. Journal of the European Ceramic Society, 2007, 27(1): 185-189.
[25]LI Li, SHI Li-yi, CAO Shao-mei, et al. LiNO₃molten salt assisted synthesis of spherical nano-sized YSZ powders in a reverse micro- emulsion system. Materials Letters, 2008, 62(12/13): 1909-1912.
[26]ZHANG Xiao-juan, JIANG Wei, SONG Dan, et al. Salt-assisted combustion synthesis of highly dispersed super paramagnetic CoFe₂O₄ nanoparticles. Journal of Alloys and Compounds, 2009, 475(1/2): L34-L37.
[27]Varadwaj K S K, Panigrahi M K, Ghose J. Effect of capping and particle size on Raman laser-induced degradation of γ-Fe₂O₃ nanoparticles. Journal of Solid State Chemistry, 2004, 117(11): 4286-4292.
[28]Xia B, Lenggoro I W, Okuyama K. Novel route to nanoparticle synthesis by salt-assisted aerosol decomposition. Advanced Materials, 2001, 13(20): 1579-1582.
[29]Sena D, Deb P, Mazumder S, et al. Microstructural investigations of ferrite nanoparticles prepared by non-aqueous precipitation route. Materials Research Bulletin, 2000, 35(8): 1243-1250.
[30]CHEN Wei-fan, LI Feng-sheng, Yu Ji-yi, et al. Rapid synthesis of mesoporous ceria–zirconia solid solutions via a novel salt-assisted combustion process. Materials Research Bulletin, 2006, 41(12): 2318-2324.
[31]LI Yong-xiu, CHEN Wei-fan, ZHOU Xue-zhen, et al. Synthesis of CeO₂ nanoparticles by mechanochemical processing and the inhibiting action of NaCl on particle agglomeration. Materials Letters, 2005, 59(1): 48-52.