Research Article

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2008, 1: 403-411

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https://doi.org/10.1007/s12274-008-8040-5

Preparation of Monodisperse Se Colloid Spheres and Se Nanowires Using Na2SeSO3 as Precursor

Liping Liu, Qing Peng, and Yadong Li(

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Department of Chemistry, Tsinghua University, Beijing 100084, China

Keywords: Na2SeSO3, dismutation, amorphous Se (a-Se) spheres, trigonal Se (t-Se) nanowires
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  • Abstract
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Nearly monodisperse spherical amorphous Se colloids are prepared by the dismutation of Na2SeSO3 solution at room temperature; by altering the pH of the solution, amorphous Se colloid spheres with sizes of about 120 nm, 200 nm, 300 nm, and 1 μm can be obtained. Se@Ag2Se core/shell spheres are successfully synthesized by using the obtained amorphous Se (a-Se) spheres as templates, indicating the potential applications of these Se nanomaterials in serving as soft templates for other selenides. Meanwhile, selenium nanowires are obtained through a “solid-solution-solid” growth process by dispersing the prepared Se spheres in ethanol. This simple and environmentally benign approach may offer more opportunities in the synthesis and applications of nanocrystal materials.
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Preparation of Monodisperse Se Colloid Spheres and Se Nanowires Using Na2SeSO3 as Precursor. Nano Res. 2008, 1: 403-411 https://doi.org/10.1007/s12274-008-8040-5

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