Microwave hydrothermal synthesis and characterizations of NiS nano-needle

Bo Bai; Xuemei Hou; Pengpeng Wang; Weisheng Guan

doi:10.1117/12.840054

20 October 2009 Microwave hydrothermal synthesis and characterizations of NiS nano-needle

Bo Bai, Xuemei Hou, Pengpeng Wang, Weisheng Guan

Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 749360 (2009) https://doi.org/10.1117/12.840054
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China

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.

Citation Download Citation

Bo Bai, Xuemei Hou, Pengpeng Wang, and Weisheng Guan "Microwave hydrothermal synthesis and characterizations of NiS nano-needle", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 749360 (20 October 2009); https://doi.org/10.1117/12.840054

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