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Hydrazine-controlled hydrothermal synthesis of Co9S8 from a homogeneous solution

Published online by Cambridge University Press:  31 January 2011

J. H. Zhan ,
X. G. Yang ,
Y. Xie ,
D. W. Wang ,
Y. T. Qian  and
X. M. Liu
J. H. Zhan
Affiliation:
Structure Research Laboratory and Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026, People's Republic of China
X. G. Yang
Affiliation:
Structure Research Laboratory and Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026, People's Republic of China
Y. Xie*
Affiliation:
Structure Research Laboratory and Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026, People's Republic of China
D. W. Wang
Affiliation:
Structure Research Laboratory and Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026, People's Republic of China
Y. T. Qian
Affiliation:
Structure Research Laboratory and Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026, People's Republic of China
X. M. Liu
Affiliation:
Structure Research Laboratory and Department of Chemistry, University of Science & Technology of China, Hefei, Anhui 230026, People's Republic of China
*
a)Address all correspondence to this author.
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Abstract

Single-phase nanocrystalline Co9S8 was prepared by hydrothermal treatment of Co(Ac)2 and NH2CSNH2 in hydrazine solution at 170 °C. The products were characterized by x-ray powder diffraction (XRD) technique, transmission electron microscope (TEM), and wet chemical analysis. XRD indicated the product was the cubic Co9S8 phase. The relative crystallite size was 6.3 nm as determined by the Scherrer method. TEM images showed the particles were agglomerative. The electron diffraction pattern also revealed their nanocrystalline nature. In this hydrothermal formation process of Co9S8, hydrazine was a critical factor. The formation process is discussed.

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Type
Articles
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Journal of Materials Research , Volume 14 , Issue 11 , November 1999 , pp. 4418 - 4420
Copyright
Copyright © Materials Research Society 1999

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References

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