Thermal stability of Fe2O3 nanowires

J. Mater. Sci. Technol. ›› 2008, Vol. 24 ›› Issue (04): 594-596.

Thermal stability of Fe2O3 nanowires

Xiongjian ZHANG

State Key Laboratory for Mesoscopic Physics; Department of Physics; Peking University; Beijing 100871; P. R. China

收稿日期:2007-12-11 修回日期:1900-01-01 出版日期:2008-07-28 发布日期:2009-10-10

Thermal Stability of Fe2O3 Nanowires

Xiongjian ZHANG, Qin HAN, Zhao DONG, Yingying XU, Han ZHANG

State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China

Received:2007-12-11 Revised:1900-01-01 Online:2008-07-28 Published:2009-10-10
Contact: Han ZHANG

摘要/Abstract

关键词: Fe2O3, nanowire, Thermal, stability, Structu

Abstract: The thermal stability of α-Fe2O3 and γ-Fe2O3 nanowires was studied by post annealing the samples at different temperatures. Before and after annealing, the samples were characterized by X-ray diffraction and scanning electron microscopy. The α-Fe2O3 nanowires are stable at the temperatures up to 600℃, and the crystalline structure becomes more perfect after annealing. This behavior supplies a way to improve the quality of the α-Fe2O3 nanowires. The γ-Fe2O3 nanowires become unstable when annealed at 350℃. Raman spectra of both nanowires have been measured, which also indicate that the γ-Fe2O3 nanowires are transformed into α-Fe2O3 under the strong laser beam.

Key words: Fe2O3 nanowire, Thermal stability, Structural transformation

Xiongjian; ZHANG. Thermal stability of Fe2O3 nanowires[J]. J. Mater. Sci. Technol., 2008, 24(04): 594-596.

Xiongjian ZHANG, Qin HAN, Zhao DONG, Yingying XU, Han ZHANG. Thermal Stability of Fe2O3 Nanowires[J]. J Mater Sci Technol, 2008, 24(04): 594-596.

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Thermal stability of Fe2O3 nanowires

Thermal Stability of Fe2O3 Nanowires

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