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ZnS nanobelts have been synthesized by a simple thermal evaporation method in a N2 atmosphere containing a small amount of CO and H2 gases. The synthesized ZnS nanobelts have a width in the range of 40 to 120 nm, a thickness of 20 nm, and a length of several micrometers. The nanobelts are single crystals with a hexagonal wurtzite structure growing along the [001] direction. A vapor–solid process is proposed for the formation of such nanobelts. The as-prepared nanobelts shows two emission bands, around 450 and 600 nm.

An a-cobalt hydroxide with an interlayer spacing of 12.65 A ˚has been synthesized in sheet shapes with dimensions of 100-120 nm with the aid of sonication. Acetate anions are intercalated into the interlayer region of the as-prepared a-cobalt hydroxide in the form of a free ion state. b-Cobalt hydroxide has also been prepared and formed as crystallized thin hexagonal platelets with a diameter of 100 nm. Pure cobalt oxyhydroxide with a particle size of 10-30 nm has also been obtained. Powder X-ray diffraction, thermogravimetric analysis, FT-IR spectroscopy, transmission electron microscopy, as well as elemental analysis, have been used in the characterization of the as-prepared samples.

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