PL EN


Preferences help
enabled [disable] Abstract
Number of results
2017 | 131 | 4 | 863-865
Article title

Phase Analysis of Magnetic Inclusions in Nanomaterials Based on Multiwall Carbon Nanotubes

Content
Title variants
Languages of publication
EN
Abstracts
EN
Functionalized multiwall carbon nanotubes as well as nanocomposite based on that material covered by nanoparticles composed of iron oxides were the subject of investigations. In order to identify all iron-bearing phases including those reported on the base of previous X-ray diffraction measurements, the transmission Mössbauer spectroscopy was utilized. The experiments were carried out both at room temperature and also at low temperatures. It was stated that in the investigated nanotubes some impurities were present, originating from the catalyst remains, in form of Fe-C and α -Fe nanoparticles. The Mössbauer spectra collected for the nanocomposite showed a complex shape characteristic of temperature relaxations. The following subspectra related to iron-based phases were identified: sextet attributed to hematite, with hyperfine magnetic field reduced due to the temperature relaxations, sextet corresponding to iron carbide as well as two doublets linked to superparamagnetic hematite and ferrihydrites.
Keywords
Year
Volume
131
Issue
4
Pages
863-865
Physical description
Dates
published
2017-04
References
  • [1] S. Iijima, Nature 354, 56 (1991), doi: 10.1038/354056a0
  • [2] E. Katz, I. Willner, Chem. Phys. Chem. 5, 1084 (2004), doi: 10.1002/cphc.200400193
  • [3] H. Pan, J. Li, Y. Feng, Nanoscale Res. Lett. 5, 654 (2010), doi: 10.1007/s11671-009-9508-2
  • [4] A.V. Herrera-Herrera, M.Á. González-Curbelo, J. Hernández-Borges, M.Á. Rodríguez-Delgado, Anal. Chim. Acta 734, 1 (2012), doi: 10.1016/j.aca.2012.04.035
  • [5] M. Krajewski, A. Malolepszy, L. Stobinski, S. Lewińska, A. Ślawska-Waniewska, M. Tokarczyk, G. Kowalski, J. Borysiuk, D. Wasik, J. Supercond. Nov. Magn. 28, 901 (2015), doi: 10.1007/s10948-014-2794-7
  • [6] W. Lottermoser, A.K. Schaper, W. Treutmann, G. Redhammer, G. Tippelt, A. Lichtenberger, S.-U. Weber, G. Amthauer, J. Phys. Chem. Lett. 110, 9768 (2006), doi: 10.1021/jp061803x
  • [7] A. Jamrozik, M. Mazurkiewicz, A. Małolepszy, L. Stobiński, K. Matlak, J. Korecki, K.J. Kurzydłowski, K. Burda, Phys. Status Solidi A 208, 1783 (2011), doi: 10.1002/pssa.201001210
  • [8] C. Janot, P. Delcroix, M. Piecuch, Phys. Rev. B 10, 2661 (1974), doi: 10.1103/PhysRevB. 10.2661
  • [9] S. Mørup, C.W. Ostenfeld, Hyperfine Interact. 136, 125 (2001), doi: 10.1023/A:1015516828586
  • [10] M.F. Hansen, C.B. Koch, S. Morup, Phys. Rev. B 62, 1124 (2000), doi: 10.1103/PhysRevB.62.1124
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv131n4083kz
Identifiers
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.