Magnetic Interactions between Nanoparticles Formed during Calcination of Ferrihydrite

• Authors: O. Schneeweiss , B. David , T. Žák , J. Filip , J. Tuček , R. Zbořil , M. Mašláň
• Languages of publication: EN

Abstracts

EN

Magnetic interactions between nanoparticles of magnetite Fe_3O_4 and α-Fe formed during calcination of ferrihydrite in H_2 at temperatures 533 ÷ 713 K were studied. The detailed phase analysis describes evolution of contents of magnetite and α-Fe. Explanation of an anomalous course of magnetic moment characterized by a local maximum at an early stage of formation of nanoparticles is discussed.

Keywords

EN

75.20.Ck; 75.20.En

Discipline

• 75.20.Ck: Nonmetals
• 75.20.En: Metals and alloys

• Journal: Acta Physica Polonica A
• Year: 2010
• Volume: 118
• Issue: 5
• Pages: 749-750

Dates

published

2010-11

Contributors

author

O. Schneeweiss

• Institute of Physics of Materials, AS CR, Žižkova 22, 61662 Brno, Czech Republic

author

B. David

• Institute of Physics of Materials, AS CR, Žižkova 22, 61662 Brno, Czech Republic

author

T. Žák

• Institute of Physics of Materials, AS CR, Žižkova 22, 61662 Brno, Czech Republic

author

J. Filip

• Departments of Physical Chemistry and Experimental Physics, Palacky University, Tr. 17. listopadu 12, 77146 Olomouc, Czech Republic

author

J. Tuček

• Departments of Physical Chemistry and Experimental Physics, Palacky University, Tr. 17. listopadu 12, 77146 Olomouc, Czech Republic

author

R. Zbořil

• Departments of Physical Chemistry and Experimental Physics, Palacky University, Tr. 17. listopadu 12, 77146 Olomouc, Czech Republic

author

M. Mašláň

• Departments of Physical Chemistry and Experimental Physics, Palacky University, Tr. 17. listopadu 12, 77146 Olomouc, Czech Republic

References

• 1. R. Zboril, M. Mashlan, D. Petridis, Chem. Mater. 14, 969 (2002)
• 2. D.V. Talapin, E.V. Shevchenko, H. Weller, in: Nanoparticles, From Theory to Application, Ed. G. Schmid, Wiley, Berlin 2003, p. 199
• 3. R.M. Cornell, U. Schwertmann, The Iron Oxides, Wiley-VCH, Weinheim 2003
• 4. J. Filip, R. Zboril, O. Schneeweiss, J. Zeman, M. Cernik, P. Kvapil, M. Otyepka, Environ. Sci. Technol. 41, 4367 (2007)

Identifiers

DOI

10.12693/APhysPolA.118.749