Synchrotron XANES Spectra of Superparamagnetic Iron Oxides Synthesized by Ultrasonic-Assisted Co-Precipitation

W. Tangwatanakul; C. Sirisathitkul; N. Muensit; T. Monnor; R. Yimnirun

doi:10.4028/www.scientific.net/AMM.481.36

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 481Synchrotron XANES Spectra of Superparamagnetic...

Synchrotron XANES Spectra of Superparamagnetic Iron Oxides Synthesized by Ultrasonic-Assisted Co-Precipitation

Abstract:

Iron oxide nanoparticles were synthesized by employing an ultrasonic homogenizer in conjunction to the co-precipitation of Fe (NO₃)₃·9H₂O, FeCl₂·4H₂O and NaOH. Synchrotron X-ray absorption near edge structure (XANES) spectra could be fitted with the contributions from hematite (α-Fe₂O₃) and, to a lesser extent, metallic Fe. The increase in reagent concentrations increased the Fe fraction which partly explained the change in magnetization of superparamagnetic particles. Nevertheless, the α-Fe₂O₃ composition was increased by using a longer reaction time.

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Periodical:

Applied Mechanics and Materials (Volume 481)

Pages:

36-39

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.481.36

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Online since:

December 2013

Authors:

W. Tangwatanakul, C. Sirisathitkul*, N. Muensit, T. Monnor, R. Yimnirun

Keywords:

Co-Precipitation, Iron Oxide, Ultrasound, XANES

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References

[1] W. Wu, Q. He and C. Jiang,: Nanoscale Res. Lett. Vol. 3 (2008), pp.397-415.

Google Scholar

[2] L. Machala, R. Zboril and A Gedanken: J. Phys. Chem. B Vol. 111 (2007), pp.4003-4018.

Google Scholar

[3] L.X. Chen, T. Liu, M.C. Thurnauer, R. Csencsits and T. Rajh: J. Phys. Chem. B Vol. 106 (2002), pp.8539-8546.

Google Scholar

[4] A. Espinosa, A. Serrano, A. Llavona, J. Jimenez de la Morena, M. Abuin, A. Figuerola, T. Pellegrino, J.F. Fernández, M. Garcia-Hernandez, G.R. Castro and M.A. Garcia: Meas. Sci. Technol. Vol. 23 (2012), 015602.

DOI: 10.1088/0957-0233/23/1/015602

Google Scholar

[5] J. Sánchez-Marcos, M.A. Laguna-Marco, R. Martinez-Morillas, E. Cespedes, F. Jimenez-Villacorta, N. Menendez and C. Prieto: J. Phys.: Condens. Matter Vol. 23 (2011), 476003.

DOI: 10.1088/0953-8984/23/47/476003

Google Scholar

[6] A. Corrias, G. Ennas, G. Mountjoy and G. Paschina: Phys. Chem. Chem. Phys. Vol. 2 (2000), pp.1045-1050.

DOI: 10.1039/a908698f

Google Scholar

[7] K. Chokprasombat, C. Sirisathitkul, P. Harding, S. Chandarak and R. Yimnirun: Rev. Mex. Fis. Vol. 59 (2013), pp.224-228.

Google Scholar

[8] B. Ravel and M. Newville: J. Synchrotron Rad. Vol. 12 (2005), pp.537-541.

Google Scholar

[9] F. de Groot: Chem. Rev. Vol. 101 (2001), pp.1779-1808.

Google Scholar