Sb2Se3 Nanowires Research Articles

Controlled Synthesis of One-Dimensional Sb2Se3 Nanostructures and Their Electrochemical Properties

The size control of antimony triselenide (Sb2Se3) nanostructures has been achieved through a template-free hydrothermal route by simply adjusting the reaction temperature or the concentration of the reactants. Electrochemical measurements have shown that Sb2Se3 nanowires and mesorods possess higher initial hydrogen storage capacity than that of bismuth sulfide nanostructures (142 mAh/g) under normal atmosphere at room temperature. Interestingly, we have found that the morphologies of the Sb2Se3 had a noticeable influence on their capacity of electrochemical hydrogen storage. The result indicates that the Sb2Se3 nanowires have potential wide applications in hydrogen storage and high-energy batteries.

The General Synthesis of Nanostructured V/VI Semiconductors

ABSTRACTSemiconductors in the V/VI series have band gaps ranging from 2.2 eV for Sb2S3 to 0.21 eV for Bi2Te3 spanning the range seen from conventional mid to narrow band gap materials to semi-metals. These materials, especially those with narrower band gaps, demonstrate thermo-electric properties and are used in Peltier devices. There are examples in the literature of the synthesis of several of these materials in a nanostructured form, however the reactions often rely on highly toxic reagents, especially in the case of tellurium containing materials. Further more there are no reports of general routes applicable to all three chalcogenides.In this paper we describe a general method for the synthesis of chalcogenide V/VI nanomaterials by the reaction of acetate salts with the corresponding chalcogenide under reflux conditions in long chain alkyl amines, typically octylamine or dodecylamine. The effect of temperature and capping agent on the morphology of the final product are discussed and in particular the synthesis of Bi2S3 nanorods, Bi2Se3 and Bi2Te3 nanowafers and Sb2Se3 nanowires are described.

Solvothermal Preparation of Sb2Se3 Nanowires

Abstract Crystalline Sb2Se3 nanowires with a typical width of 30 nm and length up to 8 μm were synthesized through the reaction between SbCl3 and elemental selenium with sodium sulfite as reducing reagent in diethylene glycol solution. The composition of the products was identified using EDX and XPS. The possible reaction mechanism was also discussed.