Preparation and Characterization of Hexagonal Close Packed Ni Nanoparticles

Chem. J. Chinese Universities

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Preparation and Characterization of Hexagonal Close Packed Ni Nanoparticles

GONG Jie^1,2*, LIU Yang², WANG Li-Li¹, YANG Jing-Hai², ZONG Zhan-Guo¹

1. Institute of Applied Physics, Changchun University, Changchun 130022, China;
2. Physical College, Jilin Normal University, Siping 136000, China

Received:2006-12-22 Revised:1900-01-01 Online:2007-07-10 Published:2007-07-10
Contact: GONG Jie

Abstract

Abstract:

The hexagonal close packed Ni nanoparticles were prepared by using heat-treating technique with the precursors prepared by sol-gel method. The synthesis condition, structural and morphology of the samples were analysed by using thermogravimetric analysis(TG), differential thermal analysis(DTA), X-ray diffraction(XRD) and transmission electron microscopy(TEM). The results indicate that hexagonal close packed Ni nanoparticles were synthesized at heat-treating temperature of 300 ℃. The cell constants is calculated of a= 0.2652 nm, c= 0.4334 nm. The average grain size of the hexagonal close packed Ni particles is evaluated by Scherrer equation is about 12 nm. The phase transformation from hexagonal close packed Ni to face center cubic Ni structural occured with increasing the heat treating temperature.

Key words: Sol-gel, Ni nanoparticles, Hexagonal close packed(hcp), Phase transformation

CLC Number:

O611.4

TrendMD:

GONG Jie^1,2*, LIU Yang², WANG Li-Li¹, YANG Jing-Hai², ZONG Zhan-Guo¹. Preparation and Characterization of Hexagonal Close Packed Ni Nanoparticles[J]. Chem. J. Chinese Universities, doi: .

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Preparation and Characterization of Hexagonal Close Packed Ni Nanoparticles

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