Rapid Preparation of V2O3 and VN Nanocrystals by Ammonolysis of the Precursor VOC2O4•H2O

Abstract:

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V2O3 and VN nanocrystals have been conveniently synthesized from thermal ammonolysis of the precursor VOC2O4•H2O in a resistance tubular furnace at 500°С and 780°С for 30 min, respectively. The products were characterized by X-ray diffractometer (XRD)、X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) techniques. The average particle sizes of V2O3 and VN are both in the ranges of 20~35 nm. The evolution from precursor to hexagonal V2O3 and then to cubic VN was explored. The crucial factors,such as the reaction temperature and time,have also been discussed.

Info:

Periodical:

Advanced Materials Research (Volumes 194-196)

Edited by:

Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang

Pages:

660-664

DOI:

10.4028/www.scientific.net/AMR.194-196.660

Citation:

H. Lin et al., "Rapid Preparation of V2O3 and VN Nanocrystals by Ammonolysis of the Precursor VOC2O4•H2O", Advanced Materials Research, Vols. 194-196, pp. 660-664, 2011

Online since:

February 2011

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$35.00

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