One-Step Alcohothermal Synthesis and Growth Mechanism of NiSe2 Porous Octahedron

Abstract:

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Microscale crystalline NiSe2 porous octahedrons have been solvothermally synthesized from reaction of NiCl2∙6H2O with Se powder in ethanol with dodecylbenzene sulfonic acid sodium salt as surfactant at 200°C for 20h. The samples are octahedral crystals with mean size of 2 micron in diameter and the micro-octahedrons present porous morphologies. The octahedral NiSe2 microcrystals exposed with {111} facets are grown under a thermodynamic process and the porous textures within the octahedrons are resulted from the cooperative effects of the oxidation of selenium in HNO3 and the coordination of Ni2+ with Cl under the alcohothermal process. The surfactant increases the monodispersity of the NiSe2 crystals with octahedral shapes.

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Periodical:

Edited by:

Yi-Min Deng, Aibing Yu, Weihua Li and Di Zheng

Pages:

769-772

DOI:

10.4028/www.scientific.net/AMM.37-38.769

Citation:

Y. H. Zhu et al., "One-Step Alcohothermal Synthesis and Growth Mechanism of NiSe2 Porous Octahedron", Applied Mechanics and Materials, Vols. 37-38, pp. 769-772, 2010

Online since:

November 2010

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$35.00

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