Galvanic synthesis of copper selenides Cu2x Se and CuSe in alkaline sodium selenosulfate aqueous solution
摘要：
Spherical copper selenide nanoparticles (NPs) were prepared by a simple reaction of sodium selenosulfate with metal copper at room temperature in alkaline Na 2 SeSO 3 aqueous solution. It is a galvanic process that operates on a coupled anodic copper oxidation and selenosulfate reduction. 1-Thioglycerol is found to catalyze this reaction. With gold and graphite as the positive electrodes, nanocrystallites of nonstoichiometric copper selenide (Cu 2 x Se) and stoichiometric copper selenides (CuSe) were produced, respectively. The XRD study shows that the produced CuSe and Cu 2 x Se are in the pure hexagonal phase and clausthalite phase, respectively. Transmission electron microscopy images show that the diameters of the produced CuSe and Cu 2 x Se NPs are in the range of 1020 and 515nm, respectively.
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DOI：
10.1007/s10008-008-0585-4
被引量：
年份：
2009
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