通过调节葡萄糖浓度,采用十六烷基三甲基溴化铵(CTAB)辅助水热法选择合成了Se和Se@C纳米棒,并用扫描电镜(SEM)、透射电镜(TEM)、粉末X射线衍射(XRD)和X射线能谱分析(EDS)对产物进行了表征。结果表明,产物Se纳米棒直径200～300nm,长达数微米;Se@C纳米棒长达数微米,内核直径200～00nm,壳厚约30nm。初步探讨了Se和Se@C纳米棒的生长机制。 The Se and C @ Se nanocrystals were synthesized by adjusting the glucose concentration by cetyltrimethylammonium bromide (CTAB) assisted hydrothermal method and characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), powder X-ray The products were characterized by X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDS). The results show that the diameter of the product Se nanorods is 200-300 nm, which is up to a few micrometers. The Se @ C nanorods are several micrometers in length with a diameter of 200 to 00 nm and a shell thickness of about 30 nm. The growth mechanism of Se and Se @ C nanorods was discussed preliminarily.