多元醇水热法制备超长空心硒微米管  

Preparation of Ultra-Long Selenium Microtubes by Polyol-Hydrothermal Method

作　　者：赵渺[1] 易双萍[1] 王震虎[1] 

机构地区：[1]广东工业大学,广东广州510006

出　　处：《稀有金属材料与工程》2011年第S2期329-332,共4页Rare Metal Materials and Engineering

基　　金：广东省自然科学基金(9151009001000052);广东省科技计划项目(2008B010600010;2006B14701009)

摘　　要：研究在碱性环境下以各种不同的醇为缓冲体系,利用氧化还原体系把高价硒还原成灰黑色的三方相硒微米管,并用XRD、SEM等分析手段对产物的形貌和结构进行表征,并对其成线机制做了相应的分析和解释。结果表明:乙醇、乙二醇、乙二醇400、乙二醇2000对硒成线的影响不同,实验发现在分子量较小的醇溶液中可以制备尺寸均匀、具有良好晶型的硒微米管;而随着所选醇的碳链的加长反而不利于硒线的生长。A variety of alcohol has been used as a buffer system in alkaline conditions, and redox reaction has been used for the synthesis of gray black t-Se microtubes in redox system. The morphologies and structure were characterized using XRD, and SEM. The formation mechanism of Se microtubes was analyzed. It is shown that ethanol, ethylene glycol, macrogol 400 and macrogol 2000 has different effects on the growth of Se microtubes. Preparation of a large number of Se microtubes has uniform size and high crystallinity in the low molecular mass alcohol solution, but the length of carbon chain is too long to promote the growth of Se microtubes in alkaline.

关 键 词：硒微米管 醇 碳链 

分 类 号：TN304.05[电子电信—物理电子学]