Synthesis and Characterization of Ilmenite-type CoTiO3 Nanomaterials

Acta Chimica Sinica ›› 2005, Vol. 63 ›› Issue (20): 1917-1920. Previous Articles Next Articles

Original Articles

钛铁矿型CoTiO₃纳米材料的制备及性能表征

周国伟*^,1，陈代荣²，徐桂英²

(¹山东轻工业学院化学工程学院济南 250100)
(²山东大学胶体与界面化学教育部重点实验室济南 250100)

投稿日期:2005-02-05 修回日期:2005-06-14 发布日期:2010-12-10
通讯作者: 周国伟

Synthesis and Characterization of Ilmenite-type CoTiO₃ Nanomaterials

ZHOU Guo-Wei*^,1, CHEN Dai-Rong², XU Gui-Ying²

(¹ School of Chemical Engineering, Shandong Institute of Light Industry, Jinan 250100)
(² Key Laboratory for Colloid and Interface of Ministry of Education of China, Shandong University, Jinan 250100)

Received:2005-02-05 Revised:2005-06-14 Published:2010-12-10
Contact: ZHOU Guo-Wei

Abstract

The nanostructural composite materials of titanium dioxide TiO₂ and cobalt oxide Co₃O₄ were prepared using cobalt nitrate hexahydrate Co(NO₃)₂•6H₂O and titanium dioxide (TiO₂, P-25) as precursors in cetyltrimethylammonium bromide (CTAB)/H₂O micelle solution. The ilmenite-type CoTiO₃nanomaterials could be obtained when the composite powders were calcinated at 600 and 700 ℃. The nanostructure composition and spectroscopic characterization of these nanomaterials at different calcination temperatures were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-vis spectroscopy and Raman spectroscopy. TEM image showed that the nanoparticles were almost spherical. The UV-vis spectra showed that nanosized CoTiO₃ displayed significant red shift in the absorption band. The formation of bond Ti—O—Co at 600 and 700 ℃ calcination temperatures was also confirmed by the XPS and Raman spectra.

Key words: ilmenite-type CoTiO₃, nanomaterial, micelle, spectroscopic characterization

Cite this article

ZHOU Guo-Wei*^,1, CHEN Dai-Rong², XU Gui-Ying². Synthesis and Characterization of Ilmenite-type CoTiO₃ Nanomaterials[J]. Acta Chimica Sinica, 2005, 63(20): 1917-1920.

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钛铁矿型CoTiO₃纳米材料的制备及性能表征

Synthesis and Characterization of Ilmenite-type CoTiO₃ Nanomaterials

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钛铁矿型CoTiO3纳米材料的制备及性能表征