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Article

Synthesis of Europium Oxide Nanorods by Ultrasound Irradiation

V. G. Pol,^† O. Palchik,^† A. Gedanken,*^† and I. Felner^‡

Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel, and The Racah Institute of Physics, The Hebrew University, Jerusalem 91904, Israel

J. Phys. Chem. B, 2002, 106 (38), pp 9737–9743

DOI: 10.1021/jp025864g

Publication Date (Web): August 13, 2002

†

Bar-Ilan University.

To whom all correspondence should be addressed. Fax: +972-3-5351250. E-mail: gedanken@mail.biu.ac.il.

‡

The Hebrew University.

Abstract

Europium oxide nanorods have been prepared by the sonication of an aqueous solution of europium nitrate in the presence of ammonia. The properties of the Eu₂O₃ nanorods were characterized by X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry, Mössbauer spectroscopy, transmission electron microscopy, high-resolution transmission electron microscopy, high-resolution scanning electron microscopy, and X-ray photoelectron spectroscopy. The particle sizes measured from transmission electron micrographs and HRSEM are about 50 × 500 nm (W × L). A possible sonochemical mechanism for formation of the europium oxide nanorods is discussed.

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