In situ laser-induced formation of α-Fe2O3 from Fe3+ ions in a cylindrical core-shell polymer brush
Article first published online: 12 FEB 2004
Copyright © 2004 John Wiley & Sons, Ltd.
Journal of Raman Spectroscopy
Volume 35, Issue 2, pages 165–169, February 2004
How to Cite
León, C. P., Kador, L., Zhang, M. and Müller, A. H. E. (2004), In situ laser-induced formation of α-Fe2O3 from Fe3+ ions in a cylindrical core-shell polymer brush. J. Raman Spectrosc., 35: 165–169. doi: 10.1002/jrs.1125
- Issue published online: 12 FEB 2004
- Article first published online: 12 FEB 2004
- Manuscript Accepted: 13 NOV 2003
- Manuscript Received: 19 AUG 2003
- Deutsche Forschungsgemeinschaft.
- Emil-Warburg-Stiftung, Bayreuth.
- iron oxide;
- core-shell polymer;
- laser-induced reaction
The Raman spectrum of a cylindrical core-shell polymer brush containing Fe3+ ions was measured in a confocal spectrometer equipped with an He–Ne laser. During irradiation, the polymer matrix decomposed, and carbonaceous compounds containing sp2 and sp3 hybridized carbon were formed. Simultaneously, the strong and narrow Raman lines of crystalline α-Fe2O3 (hematite) began to show up in the spectrum. After prolonged irradiation, the carbon signals decreased, whereas the hematite peaks remained strong. Similar experiments with the same polymer containing Cu2+ ions resulted only in very weak formation of cupric oxide. Copyright © 2004 John Wiley & Sons, Ltd.