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Proceedings Paper

Microwave hydrothermal synthesis and characterizations of NiS nano-needle
Author(s): Bo Bai; Xuemei Hou; Pengpeng Wang; Weisheng Guan
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Paper Abstract

NiS with needle-like nanostructure was successfully prepared via a facile and rapid microwave-hydrothermal method. The as-prepared products were characterized by XRD, XRF, TEM, BET, Raman spectroscopy and TGA-DTA, respectively. The experimental results showed that NiS was needle-like, and the product possessed a uniform size with the diameter in a range of 20 nm to 35 nm and the length of about 100-200 nm. The structure belonged to α-NiS crystal phase. The specific area exceeded 45.0m2/g. Moreover, the possible growth mechanisms were discussed. It was proposed that with the presence of surfactant of polyethylene glycol-400, the formative micelle in aqueous solution had acted as templates for the formation of these kinds of α-NiS crystal with the typical morphologies due to the orientated aggregation effect. Comparing with the conventional hydrothermal method, microwave hydrothermal technique could not only accelerate the reaction but also make the formed NiS precursors well crystallized.

Paper Details

Date Published: 20 October 2009
PDF: 5 pages
Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 749360 (20 October 2009); doi: 10.1117/12.840054
Show Author Affiliations
Bo Bai, Chang'an Univ. (China)
Xuemei Hou, Xian Institute of Post Telecommunications (China)
Pengpeng Wang, Chang'an Univ. (China)
Weisheng Guan, Chang'an Univ. (China)

Published in SPIE Proceedings Vol. 7493:
Second International Conference on Smart Materials and Nanotechnology in Engineering
Jinsong Leng; Anand K. Asundi; Wolfgang Ecke, Editor(s)

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