Preparation and Characterizations of a-Fe₂O₃ Nanorods and their Properties

Abstract:

a-Fe₂O₃ nanorods over large areas were successfully synthesized by hydrothermal method, using FeCl₃ as iron source and PVP as surfactant. The as-synthesized a-Fe₂O₃ nanorods were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and magnetic measurement system (SQUID-VSM) . The results show that the nanorods prepared by hydrothermal method with the diameter of about 70 nm and the length of about 300 nm. The magnetic properties of the synthesized nanorods were studied, and the remnant magnetization and coercivity of the α-Fe₂O₃ nanorods at 300K are found to be 0.07emu/g and 2300Oe, respectively. The a-Fe₂O₃ nanorods reported here may have opportunities for both fundamental research and technological applications.

• Periodical: Materials Science Forum (Volume 852)
• Pages: 346-348
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.852.346
• Online since: April 2016
• Authors: Hong Cai, Qing Bo Du, Ji Gui Xu, Hong Wei Shi, Jun Zhu
• Keywords: a-Fe₂O₃, Hydrothermal Method, Magnetic Properties, Nanorods

References

[1] W. U. Huynh,J. J. Dittmer, A. P.: Alivisatos, Science 2002, 295, 2425.

[2] Y. Xia, P. Yang, Y. Sun, Y. Wu, B. Mayers, B. Gates, Y. Yin, F. Kim, H. Yan: Adv. Mater. 2003, 15, 353.

[3] S.J. Park, S. Kim, S. Lee, Z.G. Khim, K. Char, T. Hyeon: J. Am. Chem. Soc. 2000, 122, 8581.

[4] B.D. Busbee, S.O. Obare, C.J. Murphy: Adv. Mater. 2003, 15, 414.

[5] Y. Liu, C. Zhen, W. Wang, C. Yin, G. Wang: Adv. Mater. 2001, 13, 1883.

[6] L. Vayssieres: Adv. Mater. 2003, 15, 464.

[7] S.J. Limmer, S. Seraji, Y. Wu, T.P. Chou, C. Nguyen, G. Cao: Adv. Funct. Mater. 2002, 12, 59.

[8] J.C. Hulteen, C.R. Martin: J. Mater, Chem. 1997, 7, 1075.

[9] L. Manna, E.C. Scher, A. P. Alivisatos: J. Am. Chem. Soc. 2000, 122, 12700.

[10] M. Ponzi, C. Duschatzky, A. Carrascull, E. Ponzi: Appl. Catal. A 1998, 169, 373.

DOI: 10.1016/s0926-860x(98)00026-x

[11] C. G. Granqvist: Elsevier, Amsterdam (1995).

[12] R. M. Cornell, U. Schwertmann: The Iron Oxides (VCH, Weinheim 1996).

[13] J. Livage: Chem, Mater. 1991, 3, 758.

[14] A. S. S. Brown, J. S. J. Hargreaves, B. Rijniersce: Catal. Lett. 1998, 53, 7.

[15] R.M. Cornell, U. Schwertmann: The Iron Oxides. Structure, Properties, Reactions, Occurrence and Uses (VCH, Weinheim, 1996), p.464.

[16] H.T. Sun, C. Cantalini, M. Faccio, M. Pelino, M. Catalano, L. Tapfer: J. Am. Ceram. Soc. 1996, 79, 927.

[17] M. Ozaki, S. Kratohvil, E. Matijevic: J. Colloid Interface Sci. 1984, 102, 146.

[18] N. Kallay, I. Fischer, E. Matijevic: ColloidsSurf. 1985, 13, 145.

[19] T. Sugimoto, K. Sakata: J. Colloid Interface Sci. 1992, 152, 587.

[20] L. Vayssieres,N. Beermann,S. -E. Lindquist,A. Hagfeldt: Chem. Mater. 2001, 13, 233.

[21] a)Y.Y. Fu, J. Chen,H. Zhang: Chem. Phys. Lett. 2001, 350, 491; b)Y. J. Xiong, Z. Q. Li, X.X. Li, B. Hu, Y. Xie: Inorg. Chem. 2004, 43, 6540.

[22] X. G. Wen, S. H. Wang,Y. Ding, Z. L. Wang, S. H. Yang: J. Phys. Chem. B 2005, 109, 215.

[23] Z. Q. Liu, D. H. Zhang, S. Han, C. Li, B. Lei, W. G. Lu, J. Y. Fang, C. W. Zhou: J. Am. Chem. Soc. 2005, 127, 6.

[24] S. Giri, S. Samanta, S. Maji, S. Ganguli, A. Bhaumik: J. Magn. Magn. Mater. 2005, 285, 296.

[25] B. Tang, G. L. Wang, L. H Zhuo, J. C. Ge, L. Cui: J. Inorg. Chem. 2006, 45, 5196.