水热法合成硒化锡纳米盘及其形成机理探讨

Synthesis and Formation Mechanism of SnSe_2 Nanodisks by Hydrothermal Method

本制备方法以二氧化硒(SeO_2)为硒源,以氯化亚锡(SnCl_2·2H2O)为锡源,以水合肼(N_2H_4·H_2O)为还原剂在180℃的条件下利用水热法合成了硒化锡纳米盘。产物分别用扫描电子显微镜(SEM)、X射线衍射仪(XRD)表征手段进行了表征,探索了硒化锡纳米盘的形成机理。通过一系列反应物中不同硒元素与锡元素的摩尔比的条件实验,讨论了其对反应所得产物的影响;另外,通过不同反应温度的条件实验,研究了反应体系温度对所得反应产物的影响,讨论了相关的规律。

SnSe2 nanodisks were synthesized in a hydrothermal system at 180 ℃ using SeO2 as selenium source,SnCl2·2H2O as tin source,N2H4·H2O as reductant. A series of analytic instruments,such as X-ray powder diffraction（ XRD） and scanning electron microscope（ SEM）,were used to reveal the characterization of SnSe2 nanodisks. The formation mechanism of SnSe2 nanodisks was researched,and the influence of mole ratio and reaction temperature was discussed.