Se纳米线的制备及其作为锂电池正极材料的性能研究

Preparation of selenium nanowires and the performance of its as lithium battery anode materials

以H2SeO4为Se源,吡啶和水为溶剂,以2-甲氧基-5-硝基苯胺为还原剂,180℃的温度下采用溶剂热法合成出Se纳米线。通过场发射扫描电镜FE-SEM和X射线衍射（XRD）对所得产物进行表征和分析,结果表明反应产物为三方相的Se纳米线。通过测试Se纳米线作为锂电池正极材料的电化学性能及首次充放电性能,重点探讨了新材料在锂电池方向上的应用潜力。

A solvothermal method was presented to synthesis of Se nanowires. H2 SeO4 was used as selenium precursor,the mixture of pyridine and deionized water was used as solvent, 2-methoxy-5-nitroaniline as surfactant, the reaction temperature was 180℃. The obtained samples were characterized and analyzed by field emission scanning electron microscope （FE-SEM） and X-ray diffraction （XRD）. The results indicated that the products were trigonal Se nanowires. By testing the electrochemical performance,the first charge-discharge characteristics of Se nanowires as anode material of lithiumion batteries, the potential applications of new materials in the field of lithium-ion battery was further discussed.