Size control synthesis and high coercivity L10-FePt nanoparticles produced by iron (III) acetylacetonate salt

Hossein Zeynali; Hossein Akbari; S. Arumugam

Journal of Industrial and Engineering Chemistry, Vol.23, 235-237, March, 2015

DOI10.1016/j.jiec.2014.08.022 Export Citation

Size control synthesis and high coercivity L10-FePt nanoparticles produced by iron (III) acetylacetonate salt

Hossein Zeynali^†, Hossein Akbari¹, and S. Arumugam²

Department of Physics, Kashan Branch, Islamic Azad University, Kashan, Iran
¹Department of Physics, Ardabil Branch, Islamic Azad University, Ardabil, Iran
²Centre for High Pressure Research, School of Physics, Bharathidasan University, Tiruchirapalli 620024, Tamil Nadu, India

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Monodisperse 4.11 nm FePt nanoparticles were synthesized via chemical co-reduction of iron (III) acetylacetonate and platinum (II) acetylacetonate by 1,2-hexadecanediol as a reducing agent. Then through the seed mediated growth process smaller sized FePt nanoparticles are used as seeds for the growth of larger sized particles. There is no specific limitation to achieve upper size range by this method. In this work, we have successfully synthesized FePt nanoparticles up to 8.32 nm. After annealing these particles become ferromagnetic and their coercivirty increases with increasing particle sizes and reaches a maximum value of 17760 Oe for size of 8.32 nm.

Keywords:Seed mediated;Co-reduction;FePt;Fe(acac)3;Coercivirty;Size

[References]

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[2] Salgueirino-Maceira V, Liz-Marzan LM, Farle M, Langmuir, 20(16), 6946 (2004)

[3] Elkins K, Vedantam T, Liu J, Zeng H, Sun S, Ding Y, Wang Z, Nano Lett., 3, 1647 (2003)

[4] Kang S, Shi S, Miao G, Jia Z, Nikles D, Harrell J, J. Nanosci. Nanotechnol., 7, 350 (2007)

[5] Rong CB, Li DR, Nandwana V, Poudyal N, Ding Y, Wang ZL, Zeng H, Liu JP, Adv. Mater., 18(22), 2984 (2006)

[6] Chen M, Liu JP, Sun SH, J. Am. Chem. Soc., 126(27), 8394 (2004)

[7] Sun SH, Murray CB, Weller D, Folks L, Moser A, Science, 287(5460), 1989 (2000)

[8] Liu C, Wu X, Klemmer T, Shukla N, Yang X, Weller D, Roy A, Tanase M, Laughlin D, J. Phys. Chem., 108, 6121 (2004)

[9] Chokprasombat K, Sirisathitkul C, Harding P, Chandarak S, Yimnirun R, J. Nanomater., 1 (2012)

[10] Nakaya M, Kanehara M, Yamauchi M, Kitagawa H, Teranishi T, J. Phys. Chem. C, 111, 7231 (2007)

[11] Sui Y, Zhao Y, Daniil M, Li X, Sellmyer D, J. Appl. Phys., 99 (2006)

[12] Nakaya M, Kanehara M, Teranishi T, Langmuir, 22(8), 3485 (2006)

[13] Nandwana V, Elkins K, Poudyal N, Chaubey G, Yano K, Liu J, J. Phys. Chem. C, 111, 4185 (2007)

[14] Reiss H, J. Chem. Phys., 19, 482 (1951)

[15] Yin Y, Alivisatos A, Nature, 437, 664 (2005)

[16] Cullity B, Graham C, Introduction to Magnetic Materials, John Wiley, New Jersey, 2009p. 196.