The influence of thermal annealing on structure and oxidation of iron nanowires
Abstract
Raman spectroscopy as well as Mössbauer spectroscopy were applied in order to study the phase composition of iron nanowires and its changes, caused by annealing in a neutral atmosphere at several temperatures ranging from 200°C to 800°C. As-prepared nanowires were manufactured via a simple chemical reduction in an external magnetic field. Both experimental techniques proved formation of the surface layer covered by crystalline iron oxides, with phase composition dependent on the annealing temperature (Ta). At higher Ta, hematite was the dominant phase in the nanowires.
© 2015 Marcin Krajewski, Katarzyna Brzózka, Bogumił Górka, Wei-Syuan Lin, Hong-Ming Lin, Tadeusz Szumiata, Michał Gawroński, Dariusz Wasik, published by Institute of Nuclear Chemistry and Technology
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