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Synthesis and structural characterization of two-dimensional hierarchical covellite nano-structures

Banerjee, Nirupam and Krupanidhi, SB (2012) Synthesis and structural characterization of two-dimensional hierarchical covellite nano-structures. In: MATERIALS CHEMISTRY AND PHYSICS, 137 (2). pp. 466-471.

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Official URL: http://dx.doi.org/10.1016/j.matchemphys.2012.09.03...


We report a simple, template free and low-temperature hydrothermal reaction pathway using Cu(II) - thiourea complex (prepared in situ from copper (II) chloride and thiourea as precursors) and citric acid as complexing agent to synthesize two-dimensional hierarchical nano-structures of covellite (CuS). The product was characterized with the help of X-ray powder diffraction (XRD), scanning electron microscopy (SEM), energy dispersive analysis of X-ray spectroscopy (EDAX) and X-ray photoelectron spectroscopy (XPS). The concentration of citric acid in the hydrothermal precursor solution was seen to have a profound effect on the nanostructure of the product generated. Based on the outcoming product nano-architecture at different concentration of the ionic surfactant in the hydrothermal precursor solution a possible mechanism suited for reaction and further nucleation is also discussed. (C) 2012 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to ELSEVIER SCIENCE SA, SWITZERLAND
Keywords: Inorganic compounds;Nano-structures;Chemical synthesis;Electron microscopy
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 15 Feb 2013 12:09
Last Modified: 15 Feb 2013 12:09
URI: http://eprints.iisc.ac.in/id/eprint/45783

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